4-40 Vented Socket Head Set Screws (SSHS)

4-40 Socket Head Set Screws

1/8" SS, #4-40 Vented Hex Socket Head Set Screw

Part Number: 210423

Vented #4-40, 18-8 Stainless Steel, Socket Set Screw, 1/8" long. 10 per pack.

$12.00

Quantity

1/4" SS, #4-40 Vented Hex Socket Head Set Screw

Part Number: 210424

Vented #4-40, 18-8 Stainless Steel, Socket Set Screw, 1/4" long. 10 per pack.

$12.00

Quantity

3/8" SS, #4-40 Vented Hex Socket Head Set Screw

Part Number: 210425

Vented #4-40, 18-8 Stainless Steel, Socket Set Screw, 3/8" long. 10 per pack.

$17.00

Quantity

1/2" SS, #4-40 Vented Hex Socket Head Set Screw

Part Number: 210426

Vented #4-40, 18-8 Stainless Steel, Socket Set Screw, 1/2" long. 10 per pack.

$27.00

Quantity

3/4" SS, #4-40 Vented Hex Socket Head Set Screw

Part Number: 210427

Vented #4-40, 18-8 Stainless Steel, Socket Set Screw, 3/4" long. 2 per pack.

$15.00

Quantity

4-40 Set Screws (SHSS)

The use of 'Vented' fasteners inside a vacuum environment is critical. A non-vented, blind-threaded hole creates a gas pocket that's difficult or impossible to evacuate (pump down) without an escape path. A trapped gas will manifest it self as a 'virtual leak', which is difficult to locate and causes unwanted downtime. Accu-Glass 4-40 set screws are manufactured from vacuum compatible 18-8 grade stainless steel.