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$64.950each -
5/16-18 X 1/2 Socket Head Cap Screw 18-8 Stainless Steel
SKU: XSHC5161812
$0.343each -
5/16-18 X 5/8 Socket Head Cap Screw 18-8 Stainless Steel
SKU: XSHC5161858
$0.301each -
5/16-18 X 3/4 Socket Head Cap Screw 18-8 Stainless Steel
SKU: XSHC5161834
$0.320each -
5/16-18 X 1-1/8 Socket Head Cap Screw 18-8 Stainless Steel
SKU: XSHC51618118
$0.360each -
5/16-18 X 7/8 Socket Head Cap Screw 18-8 Stainless Steel
SKU: XSHC5161878
$0.363each -
5/16-18 X 1 Socket Head Cap Screw 18-8 Stainless Steel
SKU: XSHC516181
$0.372each -
5/16-18 X 1-1/4 Socket Head Cap Screw 18-8 Stainless Steel
SKU: XSHC51618114
$0.519each -
5/16-18 X 1-1/2 Socket Head Cap Screw 18-8 Stainless Steel
SKU: XSHC51618112
$0.488each -
5/16-18 X 1-3/4 Socket Head Cap Screw 18-8 Stainless Steel
SKU: XSHC51618134
$0.552each -
5/16-18 X 2 Socket Head Cap Screw 18-8 Stainless Steel
SKU: XSHC516182
$0.610each -
5/16-18 X 2-1/4 Socket Head Cap Screw 18-8 Stainless Steel
SKU: XSHC51618214
$0.697each
5/16-18 Stainless Socket Head Cap Screw
5/16-18 Stainless Socket Head Cap Screw
5/16-18 socket head cap screws with USS coarse (UNC) thread, made from 18-8 stainless steel. We stock 1/2", 5/8", 3/4", 7/8", 1", 1-1/8", 1-1/4", 1-1/2", 1-3/4", 2", 2-1/4", 2-1/2", 2-3/4", 3", 3-1/2" lengths. They take a 1/4" hex key.

Specifications
- Size: 5/16-18 (USS coarse)
- Lengths: 1/2", 5/8", 3/4", 7/8", 1", 1-1/8", 1-1/4", 1-1/2", 1-3/4", 2", 2-1/4", 2-1/2", 2-3/4", 3", 3-1/2"
- Hex key: 1/4"
- Thread: USS coarse (UNC)
- Drive: hex socket
- Material: 18-8 stainless steel
Common Uses
- Machinery and fixtures
- Food and medical equipment
- Marine equipment
FAQ
What hex key fits a 5/16-18 socket head cap screw?
A 1/4" hex key (Allen wrench).
How do I stop stainless threads from galling?
Stainless threads can seize (gall) when tightened fast or under heavy load. Put anti-seize on the threads, tighten slowly at low speed, keep the threads clean and don't overtighten.
Related: Stainless Hex Nuts | All Stainless Socket Head Cap Screws USS
Free shipping on orders over $100, and orders placed before noon EST ship the same day. Purchase orders are accepted from government agencies, schools, hospitals, municipalities and companies with established credit with The Nutty Company, Inc.
