Midwest Fasteners Grade 8 Yellow Zinc Coarse Thread Hex Nut

Midwest Fasteners Grade 8 Yellow Zinc Coarse Thread Hex Nuts

Midwest Fasteners Grade 8 Yellow Zinc Coarse Thread Hex Nuts are Steel hex nuts built to pair with Grade 8 bolts and studs on structural, automotive, and heavy equipment work. This family is available in sizes from 1/4"-20 through 1/2"-13, giving fabricators and maintenance crews a matching Grade 8 nut for the common coarse-thread bolt sizes they already run. Machined from Steel and finished in Yellow Zinc with a Gold appearance, these hex nuts resist corrosion while standing up to the clamping loads expected of a Grade 8-rated fastening system, and the standard hex profile accepts a wrench or socket for quick installation in the field or shop.

Key Features

• Size Range: Available from 1/4"-20 up to 1/2"-13 to match the corresponding Grade 8 bolt or stud size.
• Material & Finish: Steel construction with a Yellow Zinc (Gold) finish for improved corrosion resistance over bare steel across every size in the family.
• Grade: Grade 8, matched for use with Grade 8 bolts and studs in high-load applications.
• Thread Type: Coarse thread for fast engagement and resistance to cross-threading and debris fouling, consistent across all sizes.
• Product Type: Standard hex nut profile, wrench- and socket-compatible for quick tightening and removal.
• Color: Gold-toned Yellow Zinc finish provides an easy visual cue that the nut is Grade 8 and zinc plated, regardless of size selected.

Technical Specifications

• Product Type: Hex Nut
• Product Size: 1/4"-20 - 1/2"-13
• Product Finish: Yellow Zinc
• Product Material: Steel
• Product Color: Gold
• Grade: Grade 8
• Thread Type: Coarse Thread
• Country of Origin: China

Typical Applications

• Pairing with Grade 8 hex bolts and cap screws on structural steel and equipment assemblies, selecting the nut size (1/4"-20 through 1/2"-13) that matches the bolt.
• Automotive, trailer, and heavy equipment fastening where high clamping force is required.
• Machine building and fabrication projects using coarse-thread, high-strength hardware across a range of common bolt sizes.
• Maintenance and repair work where a corrosion-resistant, Grade 8-rated nut is needed to match existing bolts of varying diameters.

Why Midwest Fasteners?

Midwest Fasteners supplies Steel hex nuts with consistent Grade 8 strength, coarse threading, and a Yellow Zinc finish across the full 1/4"-20 to 1/2"-13 size range, so contractors and fabricators can match hardware with confidence on demanding, high-load connections. Consistent material, grade, and finish from size to size make these hex nuts a dependable choice for professional and maintenance work where matching an existing Grade 8 fastening system matters, no matter which diameter the job calls for.