Grade 8 Hex Cap Coarse Large Bolts, Bulk Pack, Steel Hex Bolts for Construction, Home Improvement, 3/8-16 x 4, Pack of 25

★★★★★ 4.2 139 reviews

$34.58
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Product details

Management number 211256656 Release Date 2026/04/04 List Price $13.83 Model Number 211256656
Category

We stock a wide variety of fasteners ideal for many applications around the home, farm, business, automotive, and in industry. Most of our fasteners have a light zinc plating over steel giving a more rust resistant finish. We also sell coated and stainless products for additional rust resistance. We stock many grades of fasteners ranging from low carbon steel on up to hardened, heat treated steel. Not all fasteners are applicable for all applications so be certain to test thoroughly and get the opinion of a licensed builder or certified building or structural engineer before relying on these fasteners for any situations where failure would result in damage to property or person.

  • Premium Strength: Manufactured from Grade 8 hardened steel for superior durability and high-torque applications
  • Course Threaded: Designed with a course thread for a more secure attachment between pieces. Compatible with standard nuts and washers.
  • Hex Cap Construction: These large bolts feature a hex cap that allows for greater torque application than circular caps
  • Large Hex Bolts: The greater diameter of these steel hex bolts allows for stronger, more heavy-duty load bearing across the join
  • Versatile Use: Ideal for automotive, industrial, and heavy machinery projects requiring maximum fastening security. The corrosion-resistant zinc finish protects against corrosion for long-lasting performance indoors and outdoors.
  • Diameter: 3/8"
  • Length: 4 inches
  • Material: Steel
  • Finish: Yellow Zinc
  • Head Style: Hex (9/16 Wrench)
UPC 014973252380
Brand Hard-to-Find Fastener
Color Gold
Model 014973252380
Set Name Set of 25
Head Type Hex
Size Name 3/8-16 x 4
Head Angle 150 Degrees
Metal Type Alloy Steel
Unit Count 25.0 Count
Item Weight 3.3 Pounds
Part Number 014973252380
Thread Size 3/8 Inch-16
Thread Type Unc
Drive System External Hex
Finish Types Yellow Zinc
Grade Rating Grade 8
Manufacturer Hard-to-Find Fastener
Thread Class Coarse
Thread Style Coarse
Fastener Size 3/8-16 x 4
Fastener Type Hexagon Bolt
Item Diameter 0.38 Inches
Item Hardness Grade 8
Material Type Alloy Steel
Exterior Finish Zinc
Item Dimensions 4.75 x 4 x 3 inches
Thread Coverage Partially Threaded
Number of Pieces 25
Screw Head Style Hex
Manufacturer Grade Grade 8
Included Components Screws(25)
Set Screw Thread Type Unified National Coarse
Maximum Shear Strength 150 ksi (1000 MPa)
Compatible Groove Diameter 0.4 Inches
Global Trade Identification Number 00014973252380

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