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Heavy-duty Hillman hex head cap screws deliver Grade 8 strength for demanding fastening jobs. Made from heat-treated steel with a washer face under the head, they provide a reliable clamp and wear resistance in structural and machinery applications.
| Specification | Details |
|---|---|
| Diameter | 5/8 inch |
| Length | 4-1/2 inch |
| Material | Heat-treated steel |
| Grade | Grade 8 (USS) |
| Head Style | Hex head with washer face |
| Thread Type | Coarse |
| Threading | Partially threaded shank |
| Finish/Color | Heat-treated; yellow dichromate wear-resistant finish (per web data) |
| Number in Package | 25 (boxed) |
| Unit of Measurement | Imperial (size listed in inches) |
Q: What size are these bolts?
A: Each hex head cap screw is 5/8 inch diameter by 4-1/2 inch length.
Q: Are these fully threaded?
A: No. They are partially threaded along the shank for improved clamping performance.
Q: What material and grade are they?
A: They are Grade 8, heat-treated steel for maximum strength in heavy-duty applications.
Q: What thread type do they use?
A: Coarse thread, suitable for use with matching coarse-thread nuts or tapped holes.
Q: How many come in the box?
A: 25 screws per pack.
There’s a certain elegance to hardware that marries precision with presence, and these Grade 8 hex cap screws do just that. The heat-treated steel and clean hex silhouette bring a confident, utilitarian polish to any exposed fastener moment. Style them with blackened steel brackets or natural oak joinery to make the hardware a subtle statement. Consider them the quiet luxury of serious construction—strength that looks refined.
Equip your project with Grade 8 reliability—add these Hillman 5/8 in. x 4-1/2 in. hex cap screws to your cart today.
Ships within 48 hours · Estimated delivery Jul 14 - Jul 19
US$40
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