Cold Headers
Cold Headers
5514 N. Elston Ave
Chicago, IL 60630
Phone: 1-773-775-7900
Fax: 1-773-775-0779
Email: sales@coldheaders.com
Website: www.coldheaders.com
Working Hours: Mon - Fri 8:00am - 4:30pm CST
Saturday - Sunday CLOSED If you have any questions, please call or email us.
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6-40 x 5/16 Alloy Steel Socket Head Cap Screw gives engineers an internal-hex fastener for mechanical joints where socket engagement and dimensional consistency matter. The size callout supports bill-of-material consistency when socket-drive service locations cannot accept a substitute fastener. Applications often include tooling, fixture design, and processing equipment, especially where counterbored or close-clearance mounting is required. Internal hex drive access helps installation in compact assemblies, guards, housings, and fixture plates. This exact size supports industrial hardware, repair, and production requirements. Technical Highlights Material: Alloy Steel Thread: 6-40 Length: 5/16 in. Nominal Body Diameter: .138 in. Head Diameter: 0.218 in. min / 0.226 in. max Head Height: 0.134 in. min / 0.138 in. max Hex Key Size: 7/64 Drive Type: Internal hex socket Call 773-775-7900 or email Sales@coldheaders.com for pricing, availability, or a quote.
Unit of Measure

Specifications

Brands

 N/A Cold Headers, Inc.

Diameter

 N/A 6-40

Length

 N/A 5/16 in

Material

 N/A Alloy Steel

Quantity

 N/A 100

Package Type

 N/A Box

Search

 N/A ASSHCS.6-40.5/16

Note

Note

 N/A Less Than Package Quantity Specified Plus 25%.