4-40 x 5/16" Double SEMS Screws / Narrow Flat & Split Washers / Phillips / Pan Head / Steel / Zinc

1/4" OD Flat Washer

Product Details

Part Number: 517652 Carton Quantity: 10,000 pcs Carton Weight: 17.36 lbs
4-40 x 5/16" Double SEMS Screws / Narrow Flat & Split Washers / Phillips / Pan Head / Steel / Zinc Please Note: Item in picture may not reflect size and finish of actual part

Technical Specs

Pricing Information

1-2 Carton Price: $435.60 / Carton of 10,000 pcs ($ 0.04356 Each)
3-4 Carton Price: $410.00 / Carton of 10,000 pcs ($ 0.04100 Each)
5+ Carton Price: $387.20 / Carton of 10,000 pcs ($ 0.03872 Each)

Product Specs

  • Part Number: 517652
  • Product Category: SEMS Screws
  • Type / Style: Double Washer
  • Size: 4-40
  • Length: 5/16"
  • Head Style: Pan Head
  • Drive Style: Phillips
  • Head Diameter: 0.204 - 0.219
  • Head Height: 0.070 - 0.080
  • Full / Partial Thread: Full
  • Driver Size: 1
  • Flat Washer OD: 1/4"
  • Material: Steel
  • Finish: Zinc
  • RoHS: Compliant
  • full_partial_thread: Full
  • head_diameter: 0.204 - 0.219
  • flat_washer_od: 1/4"

Part # Cross-Reference

  • 0405SNPP

More About Part Number 517652

These 4-40 x 5/16" SEMS Screws feature a Pan Head with a Phillips Drive and are made from Steel. SEMS Screws are pre-assembled screw-and-washer fasteners designed to simplify installation, reduce handling time, and help prevent lost components during assembly. Double Washer SEMS Screws use a combination of one Split Lockwasher and one Flat Washer, providing both locking action to resist loosening and increased bearing surface for improved load distribution. They feature a Zinc Finish, which provides reliable corrosion protection for general-purpose indoor and light outdoor applications while remaining a cost-effective choice for everyday fastening needs. 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. A Phillips drive features a cross-shaped recess designed for efficient installation with standard Phillips drivers and power tools.

⚠ 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.