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-6140 pn-6140/Asset/a0001069.jpg | Thread Size N/A 1/2-20 | Length N/A 3/4 in | Thread Length N/A 1 1/4 in | Grade/Class N/A Grade 8 | Finish N/A Plain | Thread Style N/A Fine Thread |
| pn-6141 pn-6141/Asset/a0001069.jpg | Thread Size N/A 1/2-20 | Length N/A 7/8 in | Thread Length N/A 1 1/4 in | Grade/Class N/A Grade 8 | Finish N/A Plain | Thread Style N/A Fine Thread |
| pn-6142 pn-6142/Asset/a0001069.jpg | Thread Size N/A 1/2-20 | Length N/A 1 in | Thread Length N/A 1 1/4 in | Grade/Class N/A Grade 8 | Finish N/A Plain | Thread Style N/A Fine Thread |
| pn-6143 pn-6143/Asset/a0001069.jpg | Thread Size N/A 1/2-20 | Length N/A 1 1/8 in | Thread Length N/A 1 1/4 in | Grade/Class N/A Grade 8 | Finish N/A Plain | Thread Style N/A Fine Thread |
| pn-6144 pn-6144/Asset/a0001069.jpg | Thread Size N/A 1/2-20 | Length N/A 1 1/4 in | Thread Length N/A 1 1/4 in | Grade/Class N/A Grade 8 | Finish N/A Plain | Thread Style N/A Fine Thread |
| pn-6145 pn-6145/Asset/a0001069.jpg | Thread Size N/A 1/2-20 | Length N/A 1 3/8 in | Thread Length N/A 1 1/4 in | Grade/Class N/A Grade 8 | Finish N/A Plain | Thread Style N/A Fine Thread |
| pn-6146 pn-6146/Asset/a0001069.jpg | Thread Size N/A 1/2-20 | Length N/A 1 1/2 in | Thread Length N/A 1 1/4 in | Grade/Class N/A Grade 8 | Finish N/A Plain | Thread Style N/A Fine Thread |
| pn-6147 pn-6147/Asset/a0001069.jpg | Thread Size N/A 1/2-20 | Length N/A 1 3/4 in | Thread Length N/A 1 1/4 in | Grade/Class N/A Grade 8 | Finish N/A Plain | Thread Style N/A Fine Thread |
| pn-6148 pn-6148/Asset/a0001069.jpg | Thread Size N/A 1/2-20 | Length N/A 2 in | Thread Length N/A 1 1/4 in | Grade/Class N/A Grade 8 | Finish N/A Plain | Thread Style N/A Fine Thread |
| pn-6149 pn-6149/Asset/a0001069.jpg | Thread Size N/A 1/2-20 | Length N/A 2 1/4 in | Thread Length N/A 1 1/4 in | Grade/Class N/A Grade 8 | Finish N/A Plain | Thread Style N/A Fine Thread |
| pn-6150 pn-6150/Asset/a0001069.jpg | Thread Size N/A 1/2-20 | Length N/A 2 1/2 in | Thread Length N/A 1 1/4 in | Grade/Class N/A Grade 8 | Finish N/A Plain | Thread Style N/A Fine Thread |
| pn-6151 pn-6151/Asset/a0001069.jpg | Thread Size N/A 1/2-20 | Length N/A 2 3/4 in | Thread Length N/A 1 1/4 in | Grade/Class N/A Grade 8 | Finish N/A Plain | Thread Style N/A Fine Thread |
| pn-6152 pn-6152/Asset/a0001069.jpg | Thread Size N/A 1/2-20 | Length N/A 3 in | Thread Length N/A 1 1/4 in | Grade/Class N/A Grade 8 | Finish N/A Plain | Thread Style N/A Fine Thread |
| pn-6153 pn-6153/Asset/a0001069.jpg | Thread Size N/A 1/2-20 | Length N/A 3 1/4 in | Thread Length N/A 1 1/4 in | Grade/Class N/A Grade 8 | Finish N/A Plain | Thread Style N/A Fine Thread |
| pn-6154 pn-6154/Asset/a0001069.jpg | Thread Size N/A 1/2-20 | Length N/A 3 1/2 in | Thread Length N/A 1 1/4 in | Grade/Class N/A Grade 8 | Finish N/A Plain | Thread Style N/A Fine Thread |
| pn-6155 pn-6155/Asset/a0001069.jpg | Thread Size N/A 1/2-20 | Length N/A 3 3/4 in | Thread Length N/A 1 1/4 in | Grade/Class N/A Grade 8 | Finish N/A Plain | Thread Style N/A Fine Thread |
| pn-6156 pn-6156/Asset/a0001069.jpg | Thread Size N/A 1/2-20 | Length N/A 4 in | Thread Length N/A 1 1/4 in | Grade/Class N/A Grade 8 | Finish N/A Plain | Thread Style N/A Fine Thread |
| pn-6157 pn-6157/Asset/a0001069.jpg | Thread Size N/A 1/2-20 | Length N/A 4 1/4 in | Thread Length N/A 1 1/4 in | Grade/Class N/A Grade 8 | Finish N/A Plain | Thread Style N/A Fine Thread |
| pn-6158 pn-6158/Asset/a0001069.jpg | Thread Size N/A 1/2-20 | Length N/A 4 1/2 in | Thread Length N/A 1 1/4 in | Grade/Class N/A Grade 8 | Finish N/A Plain | Thread Style N/A Fine Thread |
| pn-6159 pn-6159/Asset/a0001069.jpg | Thread Size N/A 1/2-20 | Length N/A 5 in | Thread Length N/A 1 1/4 in | Grade/Class N/A Grade 8 | Finish N/A Plain | Thread Style N/A Fine Thread |
| pn-6160 pn-6160/Asset/a0001069.jpg | Thread Size N/A 1/2-20 | Length N/A 5 1/2 in | Thread Length N/A 1 1/4 in | Grade/Class N/A Grade 8 | Finish N/A Plain | Thread Style N/A Fine Thread |
| pn-6161 pn-6161/Asset/a0001069.jpg | Thread Size N/A 1/2-20 | Length N/A 6 in | Thread Length N/A 1 1/2 in | Grade/Class N/A Grade 8 | Finish N/A Plain | Thread Style N/A Fine Thread |
| pn-6162 pn-6162/Asset/a0001069.jpg | Thread Size N/A 1/2-20 | Length N/A 6 1/2 in | Thread Length N/A 1 1/2 in | Grade/Class N/A Grade 8 | Finish N/A Plain | Thread Style N/A Fine Thread |
| pn-6163 pn-6163/Asset/a0001069.jpg | Thread Size N/A 1/2-20 | Length N/A 7 in | Thread Length N/A 1 1/2 in | Grade/Class N/A Grade 8 | Finish N/A Plain | Thread Style N/A Fine Thread |
| pn-6164 pn-6164/Asset/a0001069.jpg | Thread Size N/A 1/2-20 | Length N/A 7 1/2 in | Thread Length N/A 1 1/2 in | Grade/Class N/A Grade 8 | Finish N/A Plain | Thread Style N/A Fine Thread |

