1/4 - 5/8" Diameter Hex Head Cap Screw - Grade 8
Custom Cap Screws and Small Screws
- National Bolt & Nut offers a series of 1/4 - 5/8 inch diameter hex head cap screws that meet ANSI B18.2.1 dimensional specifications. Our 1/4 - 5/8 inch diameter hex head cap screws are reliable fasteners for both construction and machinery parts.
- All our premium 1/4 - 5/8 inch diameter hex head cap screws feature rolled threads. Our hex head cap screws measuring 1/4 - 1 1/2 inches meet SAE J429 standards for both material and physical properties, while our hex head cap screws measuring 1 3/4 - 2 inches (equivalent to Grade 8) meet ASTM A354 Grade BD standards for both material and physical properties.
- Other materials and finishes available. For further information, call or send an information request.
Item # |
Thread Size |
Length |
Thread Length |
Grade/Class |
Finish |
Thread Style |
|---|---|---|---|---|---|---|
| pn-6290 pn-6290/Asset/a0001069.jpg | Thread Size N/A 9/16-18 | Length N/A 3 3/4 in | Thread Length N/A 1 3/8 in | Grade/Class N/A Grade 8 | Finish N/A Plain | Thread Style N/A Fine Thread |
| pn-6291 pn-6291/Asset/a0001069.jpg | Thread Size N/A 9/16-18 | Length N/A 4 in | Thread Length N/A 1 3/8 in | Grade/Class N/A Grade 8 | Finish N/A Plain | Thread Style N/A Fine Thread |
| pn-6292 pn-6292/Asset/a0001069.jpg | Thread Size N/A 9/16-18 | Length N/A 4 1/2 in | Thread Length N/A 1 3/8 in | Grade/Class N/A Grade 8 | Finish N/A Plain | Thread Style N/A Fine Thread |
| pn-6293 pn-6293/Asset/a0001069.jpg | Thread Size N/A 9/16-18 | Length N/A 5 in | Thread Length N/A 1 3/8 in | Grade/Class N/A Grade 8 | Finish N/A Plain | Thread Style N/A Fine Thread |
| pn-6294 pn-6294/Asset/a0001069.jpg | Thread Size N/A 9/16-18 | Length N/A 5 1/2 in | Thread Length N/A 1 3/8 in | Grade/Class N/A Grade 8 | Finish N/A Plain | Thread Style N/A Fine Thread |
| pn-6295 pn-6295/Asset/a0001069.jpg | Thread Size N/A 9/16-18 | Length N/A 6 in | Thread Length N/A 1 5/8 in | Grade/Class N/A Grade 8 | Finish N/A Plain | Thread Style N/A Fine Thread |
| pn-6296 pn-6296/Asset/a0001069.jpg | Thread Size N/A 9/16-18 | Length N/A 6 1/2 in | Thread Length N/A 1 5/8 in | Grade/Class N/A Grade 8 | Finish N/A Plain | Thread Style N/A Fine Thread |
| pn-6297 pn-6297/Asset/a0001069.jpg | Thread Size N/A 9/16-18 | Length N/A 7 in | Thread Length N/A 1 5/8 in | Grade/Class N/A Grade 8 | Finish N/A Plain | Thread Style N/A Fine Thread |
| pn-6298 pn-6298/Asset/a0001069.jpg | Thread Size N/A 9/16-18 | Length N/A 7 1/2 in | Thread Length N/A 1 5/8 in | Grade/Class N/A Grade 8 | Finish N/A Plain | Thread Style N/A Fine Thread |
| pn-6299 pn-6299/Asset/a0001069.jpg | Thread Size N/A 9/16-18 | Length N/A 8 in | Thread Length N/A 1 5/8 in | Grade/Class N/A Grade 8 | Finish N/A Plain | Thread Style N/A Fine Thread |
| pn-6300 pn-6300/Asset/a0001069.jpg | Thread Size N/A 9/16-18 | Length N/A 1 in | Thread Length N/A 1 3/8 in | Grade/Class N/A Grade 8 | Finish N/A Zinc/Yellow | Thread Style N/A Fine Thread |
| pn-6301 pn-6301/Asset/a0001069.jpg | Thread Size N/A 9/16-18 | Length N/A 1 1/4 in | Thread Length N/A 1 3/8 in | Grade/Class N/A Grade 8 | Finish N/A Zinc/Yellow | Thread Style N/A Fine Thread |
| pn-6302 pn-6302/Asset/a0001069.jpg | Thread Size N/A 9/16-18 | Length N/A 1 1/2 in | Thread Length N/A 1 3/8 in | Grade/Class N/A Grade 8 | Finish N/A Zinc/Yellow | Thread Style N/A Fine Thread |
| pn-6303 pn-6303/Asset/a0001069.jpg | Thread Size N/A 9/16-18 | Length N/A 1 3/4 in | Thread Length N/A 1 3/8 in | Grade/Class N/A Grade 8 | Finish N/A Zinc/Yellow | Thread Style N/A Fine Thread |
| pn-6304 pn-6304/Asset/a0001069.jpg | Thread Size N/A 9/16-18 | Length N/A 2 in | Thread Length N/A 1 3/8 in | Grade/Class N/A Grade 8 | Finish N/A Zinc/Yellow | Thread Style N/A Fine Thread |
| pn-6305 pn-6305/Asset/a0001069.jpg | Thread Size N/A 9/16-18 | Length N/A 2 1/4 in | Thread Length N/A 1 3/8 in | Grade/Class N/A Grade 8 | Finish N/A Zinc/Yellow | Thread Style N/A Fine Thread |
| pn-6306 pn-6306/Asset/a0001069.jpg | Thread Size N/A 9/16-18 | Length N/A 2 1/2 in | Thread Length N/A 1 3/8 in | Grade/Class N/A Grade 8 | Finish N/A Zinc/Yellow | Thread Style N/A Fine Thread |
| pn-6307 pn-6307/Asset/a0001069.jpg | Thread Size N/A 9/16-18 | Length N/A 2 3/4 in | Thread Length N/A 1 3/8 in | Grade/Class N/A Grade 8 | Finish N/A Zinc/Yellow | Thread Style N/A Fine Thread |
| pn-6308 pn-6308/Asset/a0001069.jpg | Thread Size N/A 9/16-18 | Length N/A 3 in | Thread Length N/A 1 3/8 in | Grade/Class N/A Grade 8 | Finish N/A Zinc/Yellow | Thread Style N/A Fine Thread |
| pn-6309 pn-6309/Asset/a0001069.jpg | Thread Size N/A 9/16-18 | Length N/A 3 1/4 in | Thread Length N/A 1 3/8 in | Grade/Class N/A Grade 8 | Finish N/A Zinc/Yellow | Thread Style N/A Fine Thread |
| pn-6310 pn-6310/Asset/a0001069.jpg | Thread Size N/A 9/16-18 | Length N/A 3 1/2 in | Thread Length N/A 1 3/8 in | Grade/Class N/A Grade 8 | Finish N/A Zinc/Yellow | Thread Style N/A Fine Thread |
| pn-6311 pn-6311/Asset/a0001069.jpg | Thread Size N/A 9/16-18 | Length N/A 3 3/4 in | Thread Length N/A 1 3/8 in | Grade/Class N/A Grade 8 | Finish N/A Zinc/Yellow | Thread Style N/A Fine Thread |
| pn-6312 pn-6312/Asset/a0001069.jpg | Thread Size N/A 9/16-18 | Length N/A 4 in | Thread Length N/A 1 3/8 in | Grade/Class N/A Grade 8 | Finish N/A Zinc/Yellow | Thread Style N/A Fine Thread |
| pn-6313 pn-6313/Asset/a0001069.jpg | Thread Size N/A 9/16-18 | Length N/A 4 1/2 in | Thread Length N/A 1 3/8 in | Grade/Class N/A Grade 8 | Finish N/A Zinc/Yellow | Thread Style N/A Fine Thread |
| pn-6314 pn-6314/Asset/a0001069.jpg | Thread Size N/A 9/16-18 | Length N/A 5 in | Thread Length N/A 1 3/8 in | Grade/Class N/A Grade 8 | Finish N/A Zinc/Yellow | Thread Style N/A Fine Thread |

