Zinc Square Head Bolts (10 pcs.) - 5/16" x 2-1/2", 18-307, Monster Fastener

★★★★★ 4.1 133 reviews

$90.00
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$90.00
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Product details

Management number 211259263 Release Date 2026/04/04 List Price $36.00 Model Number 211259263
Category

Square head bolts, featuring a four-sided head, offer enhanced resistance to loosening due to their larger contact surface compared to standard hex bolts, though they may require more effort to tighten. They are commonly paired with square-headed nuts.

  • Bolt Width: 5/16 inches
  • Bolt Length: 2.5 inches
  • Material: Steel
  • Coating: Zinc
  • Head Shape: Square (Fits 1/2 inch wrench)
  • Thread Count: 18 (Coarse)
  • Strength: Grade 2 / A307
  • Bolt Type: Square Head
UPC 738287717075
Brand Monster Fastener
Color Green
Size Name 18 (Coarse)
Metal Type Alloy Steel
Item Length 2.5 Inches
Part Number 738287717075
Finish Types Zinc
Manufacturer Monster Fastener
Item Diameter 0.31 Inches
Item Hardness Grade 2 / A307
Material Type Alloy Steel
Exterior Finish Zinc
Screw Head Style Square (1/2" Wrench)
Global Trade Identification Number 00738287717075

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