Request Information

1/4-28 x 1 1/8 18-8 Stainless Steel Hex Head Cap Screw provides a familiar wrench-driven head for plant equipment and field replacement work. 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 tank supports, fixture plates, and stainless brackets. Stainless-on-stainless threads can gall when run down fast or dry; moderate installation speed and thread lubricant are prudent on larger diameters.

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' catalog work is strongest where the requested size, material, and application details need a careful match.

Technical Highlights

  • Material: 18-8 Stainless Steel
  • Thread Size: 1/4-28
  • Length: 1 1/8 in.
  • Head Style: Hex
  • Drive: External Hex (wrench or socket driven)
  • Width Across Flats: 1.631-1.688 in.
  • Head Height: 0.658-0.718 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 1/4-28

Length

 N/A 1 1/8 in

Maximum Width Across the Flats

 N/A 1.688 in

Minimum Width Across the Flats

 N/A 1.631 in

Maximum Width Across Corners

 N/A 1.949 in

Minimum Width Across Corners

 N/A 1.859 in

Maximum Head Height

 N/A 0.718 in

Minimum Head Height

 N/A 0.658 in

Material

 N/A 18-8 Stainless Steel

Quantity

 N/A 100

Package Type

 N/A Box

Search

 N/A SSHHCMS.1/4-28.1 1/8

Note

Note

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