Item # TSB250-80-875/437-AA, 1/4-80 TPI Sets

Item # TSB250-80-875/437-AA, 1/4-80 TPI Sets

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Our imperial sized matched set micro positioning adjustment screws and unbraked bushings deliver precision smooth movements in the most demanding OEM applications. These matched sets provide the smoothest and most precise movements in the industry. Our highly developed proprietary machining and custom modified machines enable us to produce our 80 TPI adjusters to standards that exceed industry standards. Thread class exceeding 3a-3b by 45%. Note: Kozak Micro cannot guarantee that our screws and bushings will be compatible with screws and bushings sold by other manufacturers. Note: If you would like the bushing to be oriented in the opposite direction, please write "flip bushing" at step 4 in the comments section when checking out.



Thread Diameter

1/4 in

Thread Pitch

80 TPI

Thread Class

Exceeding 3A-3B by 45%

Screw Length Decimal

.875 in

Ball Tip Diameter

0.187 in

Hex Drive

5/64 in

Screw Material

303 S.S.

Screw ASTM #

AISI 303 (ASTM-A-484-00)

Ball Material

AISI 52100

Ball Hardness

53 HRC

Bushing Material

360 Brass H02

Flange OD

0.352 in

Barrel OD

0.3125 in

Flange Thickness

0.01 in

Bushing Length

0.437 in

Brass ASTM #