5/16"-18 Aluminum Hex Cap Screws

Lightweight Aluminum Hex Head Bolts | 5/16" Diameter - 18 Threads per Inch

Size: 5/16"-18
Hexagon head designed to be driven by a wrench or socket
Also called hex cap bolts, hex bolts, tap bolts or hex cap screws
Lightweight 2024-T4 Aluminum Alloy
High strength-to-weight ratio
Commonly used in the automotive and aerospace industries
Resistant to atmospheric corrosion

Hex Cap Screws feature a hexagonal head designed to be driven with a wrench or socket, and are commonly used with nuts and washers as a fastener assembly.

Important: We recommend not mixing metals; aluminum fasteners should be used with aluminum fasteners. For more information, please read our article on the subject HERE.

A Hex Bolt is measured as: Diameter x Thread Pitch x Length from Under Head
*Aluminum Hex Cap Screws are Fully Threaded Regardless of Length. A fully threaded hex cap screw can also be called a tap bolt.

Select Products Below See Product Specifications

NA = "Not Sold In Single Quantity"

Select Package Quantity

Aluminum Hex Cap Screws 5/16"-18 x 3/4" FT

SKU #1000-116-0002

1
$1.02 (1.02/ea)

25
$24.75 (0.99/ea)

100
$95.00 (0.95/ea)

1000
$930.00 (0.93/ea)

Subtotal: $0.00 /

Aluminum Hex Cap Screws 5/16"-18 x 1" FT

SKU #1000-116-0012

1
$1.11 (1.11/ea)

25
$27.00 (1.08/ea)

100
$104.00 (1.04/ea)

1000
$1,020.00 (1.02/ea)

Subtotal: $0.00 /

Aluminum Hex Cap Screws 5/16"-18 x 1-1/4" FT

SKU #1000-116-0022

1
$1.24 (1.24/ea)

25
$29.50 (1.18/ea)

100
$114.00 (1.14/ea)

1000
$1,100.00 (1.1/ea)

Subtotal: $0.00 /

Aluminum Hex Cap Screws 5/16"-18 x 1-1/2" FT

SKU #1000-116-0032

1
$1.36 (1.36/ea)

25
$33.00 (1.32/ea)

100
$125.00 (1.25/ea)

1000
$1,240.00 (1.24/ea)

Subtotal: $0.00 /

Aluminum Hex Cap Screws 5/16"-18 x 1-3/4" FT

SKU #1000-116-0042

1
$1.56 (1.56/ea)

25
$37.75 (1.51/ea)

100
$144.00 (1.44/ea)

1000
$1,430.00 (1.43/ea)

Subtotal: $0.00 /

Aluminum Hex Cap Screws 5/16"-18 x 2" FT

SKU #1000-116-0052

1
$1.92 (1.92/ea)

25
$47.25 (1.89/ea)

100
$179.00 (1.79/ea)

1000
$1,770.00 (1.77/ea)

Subtotal: $0.00 /

Aluminum Hex Cap Screws 5/16"-18 x 2-1/2" FT

SKU #1000-116-0062

1
$2.00 (2/ea)

25
$47.75 (1.91/ea)

100
$183.00 (1.83/ea)

1000
$1,810.00 (1.81/ea)

Subtotal: $0.00 /

Frequently Used With

Hex Finish Nuts Aluminum 5/16"-18 1000-110-0012

1
NA

25
$5.75 (0.23/ea)

100
$15.00 (0.15/ea)

1000
$130.00 (0.13/ea)

Subtotal: $0.00 /

Aluminum Flat Washers - 5/16" 1000-106-010

1
NA

25
$2.75 (0.11/ea)

100
$10.00 (0.1/ea)

1000
$80.00 (0.08/ea)

Subtotal: $0.00 /

Lock Washer Split Ring Aluminum - 5/16" 1000-108-010

1
NA

25
$3.50 (0.14/ea)

100
$12.00 (0.12/ea)

1000
$110.00 (0.11/ea)

Subtotal: $0.00 /

Nylon Lock Nut Aluminum - 5/16"-18 1000-112-018

1
NA

25
$10.00 (0.4/ea)

100
$27.00 (0.27/ea)

1000
$200.00 (0.2/ea)

Subtotal: $0.00 /

5/16"-18 Aluminum Hex Cap Screws

Lightweight Aluminum Hex Head Bolts | 5/16" Diameter - 18 Threads per Inch

Frequently Used With

Product Specifications

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