4-40 x 1/4" SEMS Screws / External Tooth Washer / Phillips / Pan Head / 410 Stainless Steel

Product Details

Part Number: 398980 Carton Quantity: 5,000 pcs Carton Weight: 6.40 lbs
4-40 x 1/4" SEMS Screws / External Tooth Washer / Phillips / Pan Head / 410 Stainless Steel Please Note: Item in picture may not reflect size and finish of actual part

Technical Specs

Pricing Information

1-2 Carton Price: $378.65 / Carton of 5,000 pcs ($ 0.07573 Each)
3-4 Carton Price: $356.40 / Carton of 5,000 pcs ($ 0.07128 Each)
5+ Carton Price: $336.60 / Carton of 5,000 pcs ($ 0.06732 Each)

Product Specs

  • Part Number: 398980
  • Product Category: SEMS Screws
  • Size: 4-40
  • Length: 1/4"
  • Head Style: Pan Head
  • Drive Style: Phillips
  • Material: 410 Stainless Steel
  • Finish: Plain
  • RoHS: Compliant

Part # Cross-Reference

  • 0404EPP410

More About Part Number 398980

These 4-40 x 1/4" SEMS Screws feature a Pan Head with a Phillips Drive and are made from 410 Stainless Steel. SEMS Screws are pre-assembled screw-and-washer fasteners designed to simplify installation, reduce handling time, and help prevent lost components during assembly. External Tooth Washer SEMS Screws use a lockwasher with outward-facing teeth that provide aggressive surface engagement and strong resistance to loosening under vibration. They feature a Plain Finish, meaning no additional surface coating has been applied; this is commonly used where the part will be painted, plated, or used in controlled indoor environments. 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.