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Serrated Hex Washer Unslotted Self Drilling Screws

Self Drilling Screws with Machine Screw threads
Heads to ASME B18.6.4 / Screws hardened to SAE J78 specifications
Case Hardened to Rockwell C50-56 (Core Hardness; Rockwell C32-40)
Steel Zinc Plated
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Item #


Ctn Qty

Weight Lbs/M


Number of Points

141007KWSMS 1/4-20 x 5/8 in 3000 11.23 Steel Zinc 2
141207KWSMS 1/4-20 x 3/4 in 2500 12.23 Steel Zinc 2
141607KWSMS 1/4-20 x 1 in 2000 14.60 Steel Zinc 2