Description
Product Overview
Upgrade your projects with Bulk 1/4"-20 Grade 8 Hex Cap Screws in a durable zinc yellow CR+3 finish, Made in USA and packed in Monster Bolts bulk cartons. These high-strength UNC bolts are ideal for industrial equipment, automotive repair, construction, fabrication, and heavy-duty maintenance where dependable clamp load and consistent quality matter.
Manufactured to strict Grade 8 standards from premium alloy steel and finished with chromate-converted zinc (CR+3), these screws provide reliable corrosion resistance and a bright yellow appearance for easy identification in the field. CR+3 zinc is RoHS compliant, making these fasteners a strong choice for companies with modern environmental requirements.
As part of our Made in USA fasteners collection, these 1/4-20 hex cap screws ship quickly from Florida and are backed by Monster Bolts’ commitment to quality and support.
Key Features
- Size: 1/4"-20 UNC (1/4-20 coarse thread) hex cap screws.
- Strength: High-strength Grade 8 alloy steel for demanding applications.
- Finish: Zinc yellow CR+3 for corrosion resistance, visibility, and a clean, professional look.
- Compliance: CR+3 zinc finish is RoHS compliant.
- Origin: Made in USA for consistent quality and traceability.
- Application: Ideal for machinery, automotive, construction, jigs/fixtures, and OEM production work.
- Bulk Packaging: Monster Bolts bulk quantities offer the best price-per-piece for individuals and businesses needing larger volumes.
Monster Specifications
| Specification | Details |
|---|---|
| Diameter | 1/4" (0.250") |
| Thread Size | 1/4"-20 UNC (coarse thread) |
| Head Style | Hex cap screw / hex bolt |
| Wrench Size | 7/16" hex wrench/socket (standard) |
| Material | Alloy steel, Grade 8 |
| Finish / Plating | Zinc yellow CR+3 (chromate-converted zinc), RoHS compliant |
| Country of Origin | Made in USA |
| Standards | Typically conforms to ASME B18.2.1 hex cap screw dimensions and SAE J429 Grade 8 mechanical properties. |
| System of Measurement | Inch / SAE |
| Lengths Available | Offered in a range of common 1/4-20 lengths. Please select your required length from the dropdown menu above. |
| Packaging | Bulk MonsterBULKS cartons (full-box counts). Quantity options shown in the size/quantity selector. |
Matching Nuts & Washers
Complete your assembly with Made in USA nuts and washers in compatible finishes:
- Matching Hex Nuts: Pair these bolts with our USA-made hex nuts for 1/4-20 hardware. Browse compatible options in our Made in USA fasteners collection.
- Flat & Lock Washers: Add flat washers and lock washers to improve load distribution and vibration resistance. Matching USA-made washers are also available under the same collection.
- For cable rigging and marine lift hardware, see our USA-machined cable & rigging components.
Why Choose Monster Bolts for Made in USA Grade 8 Fasteners?
- Made in USA focus: Strong traceability and consistent quality for critical applications.
- Industrial-ready bulk: MonsterBULKS cartons sized for shops, production lines, and field crews.
- Fast shipping: Ships quickly from our Florida warehouse.
- Responsive support: Real help from a fastener-focused team when you need it.
Order Yours Today
Stock your bins with reliable, Made in USA 1/4-20 Grade 8 hex cap screws in zinc yellow CR+3 finish. Select the length and bulk quantity that fits your project and click "Add to Cart" to keep your shop, trailer, or jobsite fully supplied with high-strength hardware you can trust.