Description

Product Overview
Handle extreme loads with Bulk 1-1/4"-7 Grade 8 Hex Cap Screws finished in zinc yellow CR+3. These oversized Made in USA UNC-thread bolts provide exceptional tensile strength, deep engagement, and reliable clamping power for structural steel, heavy-machinery, industrial equipment, agricultural rigs, and fabrication projects.
These fasteners meet SAE J429 Grade 8 mechanical specifications, ensuring consistent performance in high-stress, high-load applications. The chromate-converted zinc CR+3 plating enhances corrosion resistance and remains fully RoHS compliant, making them suitable for regulated industries and OEM environments.
These bolts are part of the Monster Bolts Made in USA Fasteners Collection, with fast Florida-based shipping.
Key Features
- Size: 1-1/4"-7 UNC (coarse thread)
- Strength: High-strength Grade 8 alloy steel
- Finish: Zinc Yellow CR+3 for corrosion resistance and fast identification
- Compliance: Finish is RoHS compliant
- Origin: 100% Made in USA
- Applications: Heavy machinery, structural steel, equipment builds, fabrication, agricultural 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 | 1-1/4" (1.250") |
| Thread Size | 1-1/4"-7 UNC (coarse thread) |
| Head Style | Hex cap screw / hex bolt |
| Wrench Size | 1-7/8" 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 mechanical properties |
| System of Measurement | Inch / SAE |
| Lengths Available | Available in common 1-1/4-7 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 these heavyweight bolts with USA-made hardware:
- 1-1/4-7 hex nuts (USA-made)
- Heavy-duty flat & lock washers for structural applications
- For lifting or marine use, explore our USA-machined cable & rigging components
Why Choose Monster Bolts?
- Made in USA for dependable strength and quality control
- Bulk value pricing for industrial and commercial buyers
- Fast U.S. fulfillment from Florida
- Customer-first support from fastener experts
Order Yours Today
Equip your operation with Made in USA 1-1/4"-7 Grade 8 hex cap screws in zinc yellow CR+3. Select your desired length above and click "Add to Cart" to stock up on reliable UNC hardware.




