5/16" x 4" Self-Drilling Screws / Unslotted / Hex Washer Head / 18-8 Stainless Steel

#3 Drill Point

Product Details

Part Number: 506488 Carton Quantity: 150 pcs Carton Weight: 12.20 lbs
5/16" x 4" Self-Drilling Screws / Unslotted / Hex Washer Head / 18-8 Stainless Steel Please Note: Item in picture may not reflect size and finish of actual part

Technical Specs

Pricing Information

1-2 Carton Price: $465.42 / Carton of 150 pcs ($ 3.10278 Each)
3-4 Carton Price: $438.04 / Carton of 150 pcs ($ 2.92026 Each)
5+ Carton Price: $413.70 / Carton of 150 pcs ($ 2.75803 Each)

Product Specs

  • Part Number: 506488
  • Product Category: Self-Drilling Screws
  • Size: #5/16
  • Thread Pitch: 5/16-12
  • Length: 4"
  • Head Style: Hex Washer Head
  • Drive Style: Unslotted
  • Head Diameter: 1/2
  • Head Height: 0.208 - 0.230
  • Width Across Flats: 1/2"
  • Washer Diameter: 0.551 - 0.590
  • Drill Point: #3
  • Full / Partial Thread: Full
  • Driver Size: 1/2
  • Material: 18-8 Stainless Steel
  • Finish: Plain
  • RoHS: Compliant
  • driver_size: 1/2
  • head_diameter: 1/2
  • thread_pitch: 5/16-12
  • width_across_flats: 1/2"

Part # Cross-Reference

  • 3164KW188

More About Part Number 506488

These #5/16 x 4" Self-Drilling Screws feature a Hex Washer Head with an Unslotted Drive and are made from 18-8 Stainless Steel. Self-drilling screws combine a drill-point tip with threaded fastening capability, allowing them to drill, tap, and fasten in a single operation. 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 Hex Washer Head incorporates a built-in washer flange beneath the head, increasing bearing surface and improving load distribution while remaining compatible with standard hex drivers. An Unslotted head contains no drive recess, making it useful in permanent or tamper-resistant fastening situations.

⚠ 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.