Print Back

5/16-18 x 3/4 18-8 Stainless Steel Low Head Socket Cap Screw supports compact equipment layouts that call for a low-profile socket screw in 18-8 stainless steel.

The low head geometry gives this 5/16-18 x 3/4 fastener a reduced profile for instrumentation and precision machinery, where the clean stainless appearance and compact head style support equipment where clearance and access both matter. It may also be specified for machine guards and access panels, where the reduced head profile helps prevent interference around removable covers and moving components.

Compared with carbon steel fasteners, 18-8 stainless steel is often selected for cleaner appearance and resistance to normal atmospheric exposure.

Cold Headers focuses on specialty socket products, difficult-to-find sizes, and practical sourcing support for MRO, automation, and repair operations.

Use the verified dimensions below to compare nominal body diameter, head diameter, head height, hex socket size, and key engagement against the available space in the assembly.

Technical Highlights

  • Material: 18-8 Stainless Steel
  • Thread Size: 5/16-18
  • Length: 3/4 in.
  • Nominal Body Diameter: 0.3125 in.
  • Head Diameter: 0.431-0.437 in.
  • Head Height: 0.152-0.156 in.
  • Hex Socket Size: 0.1562 in.
  • Minimum Key Engagement: 0.120 in.
  • Drive Type: Internal Hex

Reference dimensions may vary slightly by manufacturer.

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 5/16-18

Length

N/A 3/4 in

Material

N/A 18-8 Stainless Steel

Quantity

N/A 100

Package Type

N/A Box

Basic Screw Diameter

N/A 0.3125 in

Maximum Head Diameter

N/A 0.437 in

Minimum Head Diameter

N/A 0.431 in

Maximum Head Height

N/A 0.156 in

Minimum Head Height

N/A 0.152 in

Hex Socket Size

N/A 0.1562 in

Minimum Key Engagement

N/A 0.120 in

Search

N/A SSLHSCS.5/16-18.3/4

Note

Note

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