Description
Product Overview
Upgrade your heavy-duty builds with Bulk 1/2"-13 Grade 8 Hex Cap Screws in a corrosion-resistant zinc yellow CR+3 plating. These bolts are Made in the USA from high-strength alloy steel and deliver the mechanical performance required for structural assemblies, industrial machinery, automotive repairs, agricultural equipment, and fabrication work.
Manufactured to SAE J429 Grade 8 mechanical specifications and coated with chromate-converted zinc (CR+3), these screws provide reliable corrosion protection and remain RoHS compliant. The iconic yellow zinc finish offers easy grade identification during installs and inspections.
These bolts are part of the Monster Bolts Made in USA Fasteners Collection, backed by fast shipping from Florida and exceptional technical support.
Key Features
- Size: 1/2"-13 UNC (coarse thread)
- Strength: High-strength Grade 8 alloy steel
- Finish: Zinc Yellow CR+3 for corrosion resistance and high visibility
- Compliance: CR+3 plating is RoHS compliant
- Origin: Proudly Made in USA for consistent, traceable quality
- Applications: Industrial machinery, automotive, construction, rigging, fabrication, and heavy equipment
- Bulk Packaging: Monster Bolts bulk quantities offer the lowest cost per piece for individuals and businesses needing larger volumes.
Monster Specifications
| Specification | Details |
|---|---|
| Diameter | 1/2" (0.500") |
| Thread Size | 1/2"-13 UNC (coarse thread) |
| Head Style | Hex cap screw / hex bolt |
| Wrench Size | 3/4" hex wrench/socket |
| Material | Alloy steel, Grade 8 |
| Finish / Plating | Zinc yellow CR+3 (chromate-converted zinc), RoHS compliant |
| Country of Origin | Made in USA |
| Standards | ASME B18.2.1 dimensions; SAE J429 Grade 8 properties |
| System of Measurement | Inch / SAE |
| Lengths Available | Available in a full range of 1/2-13 lengths; select above. |
| Packaging | Monster Bolts bulk quantities offer the lowest cost per piece for individuals and businesses needing larger volumes. |
Matching Nuts & Washers
Pair with complementary USA-made hardware:
- 1/2-13 hex nuts (USA-made) in matching finishes
- Flat & lock washers for proper load distribution and vibration control
- For marine & rigging needs, see our USA-machined cable & rigging components
Why Choose Monster Bolts?
- Made in USA quality and strict manufacturing control
- Best bulk value with lower cost per piece
- Fast shipping from Florida
- Expert customer support dedicated to fasteners
Order Yours Today
Stock up on Made in USA 1/2-13 Grade 8 hex cap screws with zinc yellow CR+3 plating. Choose your length and quantity above, then click "Add to Cart" to keep your bins fully supplied with dependable UNC hardware.