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Best Cap Screws & Hex Bolts - Buying Guide

Last Updated: 05/21/2019

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Bestselling Cap Screws & Hex Bolts on Amazon

  1. 1/2"-13 X 1" (FT) HEX BOLTS A307 Grade A COARSE ZINC Cr+3 QTY 25
  2. Type 316 Stainless Steel Hex Head Bolts - Size 5/16-18 x 1-1/4" (pack of 25pcs) Marine Bolt Supply
  3. 1 1/4"-7 x 6 1/2" A325 Structural Bolt Type 1 Heavy Hex Plain Finish (Quantity: 65 pcs) Partially Th...
  4. 1/2-13 x 7 Hex Tap Bolts/Grade 8/Zinc Yellow (Carton: 90 pcs)
  5. 1 1/2-12 x 6 Hex Head Cap Screws, Alloy Steel Grade 8, Plain Finish (Quantity: 1 pcs) - Fine Thread ...
  6. Fastener Pro 1/4 x 1-1/4-Inch Hex Head Lag Screw Kit, 18-8 (304) Stainless Steel, 10-Pack (10 Lag Sc...
  7. Hard-to-Find Fastener 014973124939 Hex Machine Screw Nuts, 2-56, Piece-100
  8. Electronics-Salon 100PCS Metric M5 x 12mm Black Nylon Phillips Pan-Header Screw.
  9. Sorekarain 4 PCS M5x9mm Golden GR5 Titanium Screws Bolts for Bike Front Rear Derailleur
  10. Newport Fasteners M6 x 60mm Hex Cap Screw Metric Class 10.9 Zinc Yellow Plated Steel (Quantity: 100 ...

  #1

Type 316 Stainless Steel Hex Head Bolts - Size 5/16-18 x 1-1/4" (pack of 25pcs) Marine Bolt Supply

 Ean: 0634385957200   |    PartNumber: 6-FHC   |   Asin: B01NAIHZ9W

These bolts are coarse threaded and made of quality "Marine Grade" type 316 stainless steel and are suited for resisting rust & corrosion in most environments. (For chemical, salt water or coastal environments type 316 stainless is a must! Standard 304/18-8 will not hold up!) These are standard six sided external hex heads and depending on length can be fully or partially threaded. Length is measured from underneath the head.

Features

Brand: Marine Bolt Supply   |   Manufacturer: CMC Industrial Supply

Amazon Price: $12.95 | as of 05/21/2019(3:34pm pst)
Availibility: Usually ships in 1-2 business days
List Price: $12.95

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  #2

1 1/4"-7 x 6 1/2" A325 Structural Bolt Type 1 Heavy Hex Plain Finish (Quantity: 65 pcs) Partially Threaded

Model: Structural Bolts   |    Mpn: 888717-BR-65   |    Ean: 9145253337006   |    PartNumber: 888717-BR-65   |   Asin: B07P6D4V7K

ASTM A325 structural bolts are heavy hex bolts made of medium carbon steel with a flat bearing surface, washer faced, and chamfered point.

Features

  • Thread Diameter-Thread Pitch: 1 1/4"-7
  • Length of Bolt: 6 1/2 Inches
  • Medium Carbon Steel Quenched and Tempered
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Brand: Newport Fasteners   |   Manufacturer: Newport Fasteners

Amazon Price: $746.99 | as of 05/21/2019(3:34pm pst)
Availibility: Usually ships in 1-2 business days
List Price: $746.99

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  #3

1/2-13 x 7 Hex Tap Bolts/Grade 8/Zinc Yellow (Carton: 90 pcs)

 Ean: 8945136192323   |    PartNumber: 603279   |   Asin: B07CYJ1Q2N

Tap Bolts are Always Fully Threaded Hex Bolts or Hex Cap Screws

Features

  • Grade 8 Hex Tap Bolts
  • Fully Threaded
  • Manufactured to ASME B18.2.1 and SAE J429 specifications
  • Tensile Strength - 150,000 psi. min.
  • Coarse & Fine Thread / Steel Zinc Yellow Plated
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Brand: Newport Fasteners   |   Manufacturer: Newport Fasteners

Amazon Price: $285.99 | as of 05/21/2019(3:34pm pst)
Availibility: Usually ships in 1-2 business days
List Price: $285.99

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  #4

1 1/2-12 x 6 Hex Head Cap Screws, Alloy Steel Grade 8, Plain Finish (Quantity: 1 pcs) - Fine Thread UNF, Partially Threaded, Length: 6 inch, Thread Size: 1 1/2 inch

 Ean: 8945136584296   |    PartNumber: 821645-1   |   Asin: B07CQDQWX4

A cap screw made from medium carbon alloy stel and heat treated. Deisgned for use in high stress applications.

Features

  • A grade 8 bolt is stronger than the more commonly used grade 5.
  • It is made of alloy steel and has six radial lines on the top of the bolt head.
  • Bolt pictures are a general representation and not an actual picture of the product you will receive
  • Manufactured to ASME B18.2.1 & SAE J429 specifications
  • Tensile Strength: 150,000 psi. min, 1/4 - 1.5 inch diams)
  • See more on Amazon...

Brand: Newport Fasteners   |   Manufacturer: Newport Fasteners

Amazon Price: $68.97 | as of 05/21/2019(3:34pm pst)
Availibility: Usually ships in 1-2 business days
List Price: $68.97

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  #5

Fastener Pro 1/4 x 1-1/4-Inch Hex Head Lag Screw Kit, 18-8 (304) Stainless Steel, 10-Pack (10 Lag Screws + 10 Flat Washers)

Model: LSS14104K   |    Mpn: LSS14104K   |    Ean: 0791518117440   |    PartNumber: LSS14104K   |   Asin: B017WY96S8

Category: Lag bolts, Dimensional standard: ASME B18.2.1, Head style: Hex , Material: Stainless steel, Grade: 18-8, Diameter: 1/4", Width across the flats: 7/16", Head height: 11/64", Drive type: External hex, Finish: ASTM A380, Thread requirements: The minimum thread length must be equal to one half the nominal Screw length plus , or 6 inch, whichever is shorter. Screws too short to conform to this formula must be threaded as close to the head as possible.

Features

  • Your 1 trusted brand: Fastener Pro
  • 1/4 x 1-1/4-inch lag screws 18-8 stainless steel (10 pieces)
  • 1/4 flat washer 18-8 stainless steel (10 pieces)
  • Ready to use & easy to install
  • Carefully constructed high-quality corrosion resistant 18-8 stainless steel
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Brand: Fastener Pro   |   Manufacturer: Fastener Pro

Item Dimensions: 0.44 x 0.24 x 1.42 inches (1.1 x 0.6 x 3.6 cm)   |   Package Dimensions: 2.3 x 3.4 x 3.8 inches (5.8 x 8.6 x 9.7 cm)

Amazon Price: $14.57 | as of 05/21/2019(3:34pm pst)
Availibility: Usually ships in 1-2 business days
List Price: $14.57

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  #6

Hard-to-Find Fastener 014973124939 Hex Machine Screw Nuts, 2-56, Piece-100

Model: 014973124939   |    Mpn: MSNB-046-100   |    Ean: 0738287037609   |    PartNumber: MSNB-046-100   |   Asin: B00L1LAEJE

We stock a wide variety of fasteners ideal for many applications arround the home, farm, business, automotives, and in industry. Most of our fasteners have a light zinc plating over steel giving a more rust resistant finsh. We also sell coated and stainless products for additional rust resistance. We stock many grades of fasteners ranging from low carbon steel on up to hardened, heat treated steel. Not all fasteners are applicable for all applications so be certain to test thouroughly and get the opinion of a licensed building or certified building or structural engineer before relying on these fasteners for any situations where failure would result in damage to property or person.

Features

  • Diameter: #2
  • Material: Brass
  • Driver Type: 3/16 Wrench
  • Thread Type: 56 (Coarse)
  • Type: Hex Nut
  • Driver Type: 3/16 Wrench
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Brand: Hard-to-Find Fastener   |   Manufacturer: Hard-to-Find Fastener

Item Dimensions: 1.63 x 2.13 x 2.19 inches (4.1 x 5.4 x 5.6 cm)   |   Package Dimensions: 1.6 x 2.1 x 2.1 inches (4.1 x 5.3 x 5.3 cm)

Amazon Price: $8.11 | as of 05/21/2019(3:34pm pst)
Availibility: Usually ships in 24 hours
List Price: $11.18

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  #7

Electronics-Salon 100PCS Metric M5 x 12mm Black Nylon Phillips Pan-Header Screw.

 Ean: 6921407387195   |    PartNumber: SCW-NLB/M5x12-100   |   Asin: B0197OP3GA

Metric M5 x 12mm Nylon Phillips Pan-Header Screws

Features

  • Metric M5 x 12mm Nylon Phillips Pan-Header Screws
  • Quantity: a lot of 100 pieces.
  • Screw thread: M5/(5mm), Thread pitch: 0.8mm
  • Thread length: 12mm .
  • Material: Nylon PA66. Color: Black.
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Brand: Electronics-Salon   |   Manufacturer: Electronics-Salon

Amazon Price: $10.00 | as of 05/21/2019(3:34pm pst)
Availibility: Usually ships in 1-2 business days
List Price: $10.00

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  #8

Sorekarain 4 PCS M5x9mm Golden GR5 Titanium Screws Bolts for Bike Front Rear Derailleur

 Ean: 0606227976588   |    PartNumber: XZO00399   |   Asin: B07J5XTXVP

Material:6AL/4V(TC4)Titanium Alloy,Grade 5 Thred:M5 Thread Length:9mm Pitch:0.8 mm Color: Golden Applied:Bike Front Rear Derailleur Each bid for 4 PCS! We also have other relavent products.

Features

Brand: Sorekarain   |   Manufacturer: SOKA

Amazon Price: $9.82 | as of 05/21/2019(3:34pm pst)
Availibility: Usually ships in 4-5 business days
List Price: $9.82

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  #9

Newport Fasteners M6 x 60mm Hex Cap Screw Metric Class 10.9 Zinc Yellow Plated Steel (Quantity: 100 pcs) M6-1.0 x 60mm Hex Bolt/Coarse Thread/Partially Threaded 18mm inches of Thread/DIN 931

 Ean: 9145253160390   |    PartNumber: N165170-100   |   Asin: B07H7PK8NV

An externally threaded fastener with a hexagonal head, washer face beneath the head, a metric thread pitch. Made from high alloy steel and heat-treated. Threaded shank does not extend completely to the head

Features

  • DIN 931
  • Metric Class 10.9 Steel
  • Coarse Thread / Partially Threaded 18mm inches of Thread
  • Manufactured to ASME B18.2.1 dimensions
  • RoHS: On Request
  • See more on Amazon...

Brand: Newport Fasteners   |   Manufacturer: Newport Fasteners

Amazon Price: $25.97 | as of 05/21/2019(3:34pm pst)
Availibility: Usually ships in 1-2 business days
List Price: $25.97

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  #10

Newport Fasteners M14 x 100mm Hex Cap Screw Metric Class 10.9 Zinc Yellow Plated Steel (Quantity: 130 pcs) M14-2.0 x 100mm Hex Bolt/Coarse Thread / 34mm inches of Thread/DIN 931

 Ean: 9145253209600   |    PartNumber: N165653-130   |   Asin: B07H7NTVPJ

An externally threaded fastener with a hexagonal head, washer face beneath the head, a metric thread pitch. Made from high alloy steel and heat-treated. Threaded shank does not extend completely to the head

Features

  • DIN 931
  • Metric Class 10.9 Steel
  • Coarse Thread / Partially Threaded 34mm inches of Thread
  • Manufactured to ASME B18.2.1 dimensions
  • RoHS: On Request
  • See more on Amazon...

Brand: Newport Fasteners   |   Manufacturer: Newport Fasteners

Amazon Price: $256.97 | as of 05/21/2019(3:34pm pst)
Availibility: Usually ships in 1-2 business days
List Price: $256.97

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  #11

Newport Fasteners 5/16 inch x 1 inch Hex Cap Screw Grade 9 Zinc Yellow Plated Steel (Quantity: 100 pcs) Made in USA, 5/16-18 x 1 Hex Bolt/Coarse Thread/Partially Threaded 0.875 inches of Thread

 Ean: 9145253266931   |    PartNumber: N611070-100   |   Asin: B07H7NLF4M

Has Greater tensile strength than a Grade 8. Designed for use in heavy machinery and equipment subject to harsh fatigue conditions

Features

  • Rockwell C38-C42
  • Grade 9 Steel
  • Coarse Thread / Partially Threaded 0.875 inches of Thread
  • Manufactured from 8647 /8640 /8740 Medium Carbon Alloy Steel
  • Tensile Strength: 180,000 psi. min,
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Brand: Newport Fasteners   |   Manufacturer: Newport Fasteners

Amazon Price: $80.97 | as of 05/21/2019(3:34pm pst)
Availibility: Usually ships in 1-2 business days
List Price: $80.97

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  #12

Newport Fasteners 9/16 inch x 1 inch Hex Cap Screw Grade 8 Zinc Yellow Plated Steel (Quantity: 25 pcs) 9/16-18 x 1 Hex Bolt/Fine Thread/Fully Threaded

 Ean: 9145253258813   |    PartNumber: N455396-25   |   Asin: B07H7NCP8F

A cap screw made from medium carbon alloy stel and heat treated. Deisgned for use in high stress applications.

Features

  • Grade 8 Steel made of alloy steel and has six radial lines on the top of the bolt head
  • Finish: Zinc Yellow
  • Fine Thread / Fully Threaded
  • Manufactured to ASME B18.2.1 & SAE J429 specifications
  • Tensile Strength: 150,000 psi. min, 1/4 - 1.5 inch diams)
  • See more on Amazon...

Brand: Newport Fasteners   |   Manufacturer: Newport Fasteners

Amazon Price: $24.97 | as of 05/21/2019(3:34pm pst)
Availibility: Usually ships in 1-2 business days
List Price: $24.97

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  #13

Newport Fasteners M12 x 160mm Hex Cap Screw Metric Class 10.9 Zinc Yellow Plated Steel (Quantity: 115 pcs) M12-1.75 x 160mm Hex Bolt/Coarse Thread / 36mm inches of Thread/DIN 931

 Ean: 9145253210507   |    PartNumber: N165384-115   |   Asin: B07H7N6MDZ

An externally threaded fastener with a hexagonal head, washer face beneath the head, a metric thread pitch. Made from high alloy steel and heat-treated. Threaded shank does not extend completely to the head

Features

  • DIN 931
  • Metric Class 10.9 Steel
  • Coarse Thread / Partially Threaded 36mm inches of Thread
  • Manufactured to ASME B18.2.1 dimensions
  • RoHS: On Request
  • See more on Amazon...

Brand: Newport Fasteners   |   Manufacturer: Newport Fasteners

Amazon Price: $262.97 | as of 05/21/2019(3:34pm pst)
Availibility: Usually ships in 1-2 business days
List Price: $262.97

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  #14

Newport Fasteners 1/4 inch x 3/8 inch Hex Cap Screw Grade 8 Zinc Yellow Plated Steel (Quantity: 100 pcs) 1/4-20 x 3/8 Hex Bolt/Coarse Thread/Fully Threaded

 Ean: 9145253146363   |    PartNumber: N454718-100   |   Asin: B07H7M87NM

A cap screw made from medium carbon alloy stel and heat treated. Deisgned for use in high stress applications.

Features

  • Grade 8 Steel made of alloy steel and has six radial lines on the top of the bolt head
  • Finish: Zinc Yellow
  • Coarse Thread / Fully Threaded
  • Manufactured to ASME B18.2.1 & SAE J429 specifications
  • Tensile Strength: 150,000 psi. min, 1/4 - 1.5 inch diams)
  • See more on Amazon...

Brand: Newport Fasteners   |   Manufacturer: Newport Fasteners

Amazon Price: $24.97 | as of 05/21/2019(3:34pm pst)
Availibility: Usually ships in 1-2 business days
List Price: $24.97

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  #15

Newport Fasteners M16 x 75mm Hex Cap Screw 18-8 Stainless Steel (Quantity: 75 pcs) M16-2.0 x 75mm Hex Bolt/Coarse Thread/Partially Threaded 38mm inches of Thread/DIN 931

 Ean: 9145253242881   |    PartNumber: N830764-75   |   Asin: B07H7LWL7T

An externally threaded fastener with a hexagonal head, washer-face beneath the head, a metric thread pitch, made from stainless steel. Threaded shank does not extend completely to the head.

Features

  • DIN 931
  • Stainless Steel A2 (18-8)
  • Coarse Thread / Partially Threaded 38mm inches of Thread
  • Manufactured to ASME B18.2.1 dimensions
  • RoHS: Compliant
  • See more on Amazon...

Brand: Newport Fasteners   |   Manufacturer: Newport Fasteners

Amazon Price: $108.97 | as of 05/21/2019(3:34pm pst)
Availibility: Usually ships in 1-2 business days
List Price: $108.97

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  #16

7/8 x 7" Heavy Hex Bolts A193 Grade B7, Plain Alloy Steel (Grade B7) (Quantity: 30) Partially Threaded, Coarse Thread, 7/8-9 x 7"

 Ean: 0696297895049   |    PartNumber: 284136-30   |   Asin: B07GT9X3YW

A193 (heavy hex): A193 is the ASTM standard covering alloy and stainless steel bolting materials for high temperature or high pressure service. This specification includes fasteners intended for use in pressure vessels, valves, flanges, and fittings. Material selection depends on design, service conditions, mechanical properties, and temperature characteristics. This material is often available in UNC thread pitches, if being used in traditional applications, threads are specified 8 threads per inch or 8UN for diameters above one inch.

Features

Brand: Newport Fasteners   |   Manufacturer: Newport Fasteners

Amazon Price: $244.99 | as of 05/21/2019(3:34pm pst)
Availibility: Usually ships in 1-2 business days
List Price: $244.99

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  #17

1 x 3-3/4" Heavy Hex Bolts A325 Type 1, Hot Dipped Galvanized Steel (Quantity: 190) Partially Threaded, Coarse Thread, 1-8 x 3-3/4"

 Ean: 0696297888898   |    PartNumber: 821312-190   |   Asin: B07GT9523C

Heavy Hex Head Bolts are designed for those applications that require a larger than a standard hex head. The head will be larger and thicker than a standard hex head bolt

Features

  • Diameter-Threads Per Inch: 1-8
  • Length: 3-3/4 inch
  • A325 (heavy hex structural): F3125 is the consolidation and replacement of 6 ASTM standards: A325, A325M, A490, A490M, F1852, and F2280. This coveres the chemical, physical, and mechanical properties and requirements for structural bolts manufactured from steel and alloy steel, in two strengths, two styles, and two types
  • See more on Amazon...

Brand: Newport Fasteners   |   Manufacturer: Newport Fasteners

Amazon Price: $691.99 | as of 05/21/2019(3:34pm pst)
Availibility: Usually ships in 1-2 business days
List Price: $691.99

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  #18

7/8 x 13" Hex Machine Bolt A307 Grade A Steel (Quantity: 18) Zinc Steel, Coarse Thread, 6" Thread, 7/8-9 x 13"

 Ean: 0696297871234   |    PartNumber: 661085-18   |   Asin: B07GT8Z5GN

Hex bolts are bolts with a hexagonal head on one end, with no washer face on the bearing surface and a threaded shaft on the other end

Features

  • Diameter-Threads Per Inch: 7/8-9
  • Length: 13 inch
  • A307 is the specification for carbon steel bolting, studs, and threaded rod with 60,000PSI tensile strength. Standard Hex Head
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Brand: Newport Fasteners   |   Manufacturer: Newport Fasteners

Amazon Price: $118.99 | as of 05/21/2019(3:34pm pst)
Availibility: Usually ships in 1-2 business days
List Price: $118.99

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  #19

1-1/4 x 2-1/4" Heavy Hex Bolts A325 Type 1, Plain Steel (Quantity: 130) Fully Threaded, Coarse Thread, 1 1/4-7 x 2-1/4" - Made in USA

 Ean: 0696297897272   |    PartNumber: 173750-130   |   Asin: B07GT8Z1HN

Heavy Hex Head Bolts are designed for those applications that require a larger than a standard hex head. The head will be larger and thicker than a standard hex head bolt

Features

  • Diameter-Threads Per Inch: 1 1/4-7
  • Length: 2-1/4 inch
  • A325 (heavy hex structural): F3125 is the consolidation and replacement of 6 ASTM standards: A325, A325M, A490, A490M, F1852, and F2280. This coveres the chemical, physical, and mechanical properties and requirements for structural bolts manufactured from steel and alloy steel, in two strengths, two styles, and two types
  • See more on Amazon...

Brand: Newport Fasteners   |   Manufacturer: Newport Fasteners

Amazon Price: $736.99 | as of 05/21/2019(3:34pm pst)
Availibility: Usually ships in 1-2 business days
List Price: $736.99

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