Alloy Steel Socket Head ( 1960 Series ) Vented Cap Screw: 3/8-24 x 3/4
The J20-753-55012 from Industrial Hardware and Specialties is a alloy steel, vented socket head ( 1960 series ) cap screw. The vented cap screw is 3/4" ( 0.75 ) long with a diameter thread pitch of 3/8-24 ( UNRF-3A ). The Alloy Steel Socket Head ( 1960 Series ) Vented Cap Screw: 3/8-24 x 3/4 requires a 5/16" hex socket for installation. The hex socket socket head ( 1960 series ) vented cap screw is drilled with a 0.093" hole to allow for trapped gases to escape. It meets fastener standard ANSI/ASME B18.3, and thread standard ANSI/ASME B1.1.
Industrial Hardware and Specialties vented caps screws are ideally suited for fastening inside high vacuum (UV), or ultra high vacuum (UHV) equipment as well as other high pressure environments. The Alloy Steel Socket Head ( 1960 Series ) Vented Cap Screw: 3/8-24 x 3/4 comes with a 0.093" hole drilled through it's head. This feature helps to eliminate the possibility of virtual leaks as the hole allows gas molecules to vent into the vacuum system through the top of fastener and out of the system. This vented cap screw is made from alloy steel. The J20-753-55012 has a socket head ( 1960 series ), is 3/4" ( 0.75 ) long with a diameter thread pitch of 3/8-24 ( UNRF-3A ). The Alloy Steel Socket Head ( 1960 Series ) Vented Cap Screw: 3/8-24 x 3/4 requires a 5/16" hex socket for installation.
| Fastener Type | Vented Cap Screw |
| Fastener Standard | ANSI/ASME B18.3 |
| Drive Type | Hex Socket |
| Head Style | Socket Head ( 1960 Series ) |
| Diameter Thread Pitch (in) | 3/8-24 |
| Thread Class Fit | UNRF-3A |
| Length (in.) | 3/4 |
| Point Type | Flat or Slightly Concave & Chamfered |
| Material | Alloy Steel |
| Thread Standard | ANSI/ASME B1.1 |
| Vent Hole Dia. (Nominal) (in.) | 0.093 |
| Hole Tolerance (in.) | +0.003 / -0.010 |
| Drive Size | 5/16 |
| Head Height (in.) | 0.375 / 0.368 |
| Head Diameter ⌀ | 0.562 / 0.550 |
