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Use the 5/8-11 x 5 18-8 stainless hex head cap screw when the assembly calls for side wrench access and a general-purpose bolt pattern. 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 machinery guards, side-mounted brackets, and serviceable equipment joints. External hex drive is useful when a wrench or socket can reach the head from the side and a counterbore would add unnecessary machining.

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: 5/8-11
  • Length: 5 in.
  • Head Style: Hex
  • Drive: External Hex (wrench or socket driven)
  • Width Across Flats: 0.181-0.188 in.
  • Wrench Size: 3/16 in.
  • Head Height: 0.058-0.070 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 5/8-11

Length

 N/A 5 in

Maximum Width Across the Flats

 N/A 0.188 in

Minimum Width Across the Flats

 N/A 0.181 in

Minimum Width Across Corners

 N/A 0.202 in

Maximum Head Height

 N/A 0.070 in

Minimum Head Height

 N/A 0.058 in

Material

 N/A 18-8 Stainless Steel

Quantity

 N/A 25

Package Type

 N/A Box

Search

 N/A SSHHCMS.5/8-11.5

Note

Note

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