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  1. Products
  2. Screws
  3. Self-Drilling Screws
  4. Hex Washer
  5. Unslotted
  6. CSD - Machine Screw Thread
  7. Zinc - #2 & #3 Pt.
  8. 5/16-18X1 1/4

5/16-18X1 1/4 Hex Washer - Unslotted - Self Drilling Screws - Machine Threads - Zinc

Hex Washer - Unslotted - Self Drilling Screws - Machine Threads - Zinc

SELF DRILLING SCREWS WITH MACHINE SCREW THREADS

Heads to ASME B18.6.3 I Screws hardened to SAE J78 specifications
Case Hardened to Rockwell C50-56
(Core Hardness: Rockwell C32-40)
Steel Zinc Plated

Technical Specifications / 2D PDF Icon

Head Dimensions Hex & Hex Washer Slotted
Types BSD & CSD Drill Points #2 & 3
Guide to Drill Point Size Steel Zinc Screws
Show More Sizes

Product Details

Product SKU: 3120KWMS
Product Category: SELF-DRILLING SCREWS
Metric / Standard: Standard
Product Size: 5/16-18X1 1/4
Diameter: 5/16
Thread Pitch: 18
Length: 1 1/4
Drive: Unslotted
Head Style: Hex Washer
Material: Steel
Finish: Zinc
Tek Point: #3
In Stock: Y
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Pricing Information

Box Count: 500(Pieces)
Price Per Box: $285.19$0.57038 (Each)
5 Box Price: $261.80$0.52360 (Each)
Weight / Box: 15.63 lb0.03126 lb (Each)
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Total Pieces:
Total Weight:
Subtotal Price:
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