5/16-18 x 1" Machine Screws / Six-Lobe (Torx®) / Pan Head / 18-8 Stainless Steel / Black Oxide

Product Details

Part Number: 638988 Carton Quantity: 300 pcs Carton Weight: 9.70 lbs
5/16-18 x 1" Machine Screws / Six-Lobe (Torx®) / Pan Head / 18-8 Stainless Steel / Black Oxide Please Note: Item in picture may not reflect size and finish of actual part

Technical Specs

Pricing Information

1-2 Carton Price: $324.56 / Carton of 300 pcs ($ 1.08188 Each)
3-4 Carton Price: $305.47 / Carton of 300 pcs ($ 1.01824 Each)
5+ Carton Price: $288.50 / Carton of 300 pcs ($ 0.96167 Each)

Product Specs

  • Part Number: 638988
  • Product Category: Machine Screws
  • Size: 5/16-18
  • Length: 1"
  • Head Style: Pan Head
  • Drive Style: Torx® / Six-Lobe
  • Head Diameter: 0.594 - 0.615
  • Head Height: 0.203 - 0.218
  • Full / Partial Thread: Full
  • Driver Size: T40
  • Material: 18-8 Stainless Steel
  • Finish: Black Oxide
  • RoHS: Compliant
  • head_height: 0.203 - 0.218
  • head_diameter: 0.594 - 0.615

Part # Cross-Reference

  • 3116MTP188B

More About Part Number 638988

These 5/16-18 x 1" Machine Screws feature a Pan Head with a Six-Lobe Drive and are made from 18-8 Stainless Steel. Machine screws are uniform-diameter threaded fasteners commonly used with tapped holes or nuts in machinery, electronics, and general assembly applications. They feature a Black Oxide Finish, which provides mild corrosion resistance and a dark matte appearance and is commonly used in indoor or lightly protected applications. The Pan Head features a slightly rounded top with a flat bearing surface, offering a versatile profile commonly used in sheet metal and general fastening applications. The Six-Lobe Drive offers increased torque transfer, decreased stripping and extremely low cam-out.

⚠ WARNING: This product can expose you to chemicals including lead, which is known to the State of California to cause cancer.
For more information, go to www.P65Warnings.ca.gov.

Torx® is a registered trademark of Acument Intellectual Properties, LLC