5/16-24 x 1 1/4 18-8 Stainless Steel Low Head Socket Cap Screw is useful where the fastener head must remain lower than a standard socket head while retaining internal-hex drive access.

The material provides everyday corrosion resistance for production equipment, commercial hardware, and maintenance work without overstating the application.

The low head geometry gives this 5/16-24 x 1 1/4 fastener a reduced profile for conveyor systems and packaging equipment, where lower head projection can reduce snag points while still providing socket-drive access for maintenance. It may also be specified for compact equipment housings and panel assemblies, where internal wrenching keeps the drive feature inside the head when external wrench clearance is limited.

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.

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

Technical Highlights

  • Material: 18-8 Stainless Steel
  • Thread Size: 5/16-24
  • Length: 1 1/4 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 5/16-24

Length

N/A 1 1/4 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.5/16-24.1 1/4

Note

Note

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