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1/2-13 x 1/4 18-8 Stainless Steel Hex Head Cap Screw is an externally driven fastener for wrench or socket installation from the side of the head. In this size range it is treated as a hex head cap screw, with the hex head driven by external tooling rather than an internal socket.

Common application reviews include retrofit repairs, service records, and exact-size replacement needs. When the design calls for a recessed counterbored fastener or tighter tool clearance, compare 18-8 Socket Head Cap Screws.

18-8 stainless steel is an 18% chromium and 8% nickel austenitic stainless material used for ordinary atmosphere, moisture exposure, washdown, and clean appearance. Cold Headers has supplied specialty fasteners since 1962 and supports exact-size sourcing for hard-to-find industrial hardware.

Technical Highlights

  • Material: 18-8 Stainless Steel
  • Thread Size: 1/2-13
  • Length: 1/4 in.
  • Head Style: Hex
  • Drive: External Hex (wrench or socket driven)
  • Width Across Flats: 0.428-0.438 in.
  • Wrench Size: 7/16 in.
  • Head Height: 0.150-0.163 in.
  • Dimensional Standard: ASME B18.2.1
  • Material Standard: ASTM F593

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 1/2-13

Length

 N/A 1/4 in

Maximum Width Across the Flats

 N/A 0.438 in

Minimum Width Across the Flats

 N/A 0.428 in

Maximum Width Across Corners

 N/A 0.505 in

Minimum Width Across Corners

 N/A 0.488 in

Maximum Head Height

 N/A 0.163 in

Minimum Head Height

 N/A 0.150 in

Material

 N/A 18-8 Stainless Steel

Quantity

 N/A 50

Package Type

 N/A Box

Search

 N/A SSHHCMS.1/2-13.1/4

Note

Note

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