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3/8-16 x 5/16 18-8 Stainless Steel Low Head Socket Cap Screw provides a reduced-head socket-drive option for assemblies that need stainless construction and controlled head projection.

The low head geometry gives this 3/8-16 x 5/16 fastener a reduced profile for robotics and automation equipment, where compact socket-head geometry supports tight machine envelopes and serviceable internal-hex installation. It may also be specified for conveyor systems and packaging equipment, where lower head projection can reduce snag points while still providing socket-drive access for maintenance.

18-8 stainless steel is a general-purpose stainless choice for indoor equipment, many outdoor installations, and assemblies where a clean appearance is important.

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: 3/8-16
  • Length: 5/16 in.
  • Nominal Body Diameter: 0.3750 in.
  • Head Diameter: 0.556-0.562 in.
  • Head Height: 0.182-0.187 in.
  • Hex Socket Size: 0.1875 in.
  • Minimum Key Engagement: 0.145 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 3/8-16

Length

N/A 5/16 in

Material

N/A 18-8 Stainless Steel

Quantity

N/A 100

Package Type

N/A Box

Basic Screw Diameter

N/A 0.3750 in

Maximum Head Diameter

N/A 0.562 in

Minimum Head Diameter

N/A 0.556 in

Maximum Head Height

N/A 0.187 in

Minimum Head Height

N/A 0.182 in

Hex Socket Size

N/A 3/16 in

Minimum Key Engagement

N/A 0.145 in

Search

N/A SSLHSCS.3/8-16.5/16

Note

Note

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