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Threaded with & without Sensor Holes Rest Buttons

CLOSEOUT PRICING ON AVAILABLE STOCK / PRODUCT DISCONTINUATION

Thread into job instead of press fit. “C” dimension left with .010-.015 for finishing after assembly. For cutter setting blocks on milling fixtures, grind to your own specifications. Case hardened to approximately .030 deep. The Rest Buttons with sensors feature a hole drilled through the center of the button. The addition of the hole allows for part sensing by use of air sensors or fiber optics. Sensing the part to be machined becomes critical when automate part loading is required.

  • Material: Low Carbon Steel
  • Finish: Black Oxide
  • Heat Treat: Case Hardened 75-77 R30N
  • Thread: 2B-UNF (Inch); Class 6g (metric)
  • Part numbers with "-SH" suffix indicate buttons with a thru hole for part sensing


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Click the Part Number in below chart
for Price and Stock Check.

Part Number w/o Sensor HolePart Number w/ Sensor HoleA (in.)B (in.)C (in.)DThread Pitchd1 in (mm)d2 in. (mm)wt/lbs 10 pcs
21502
21502-SH
3/83/83/41/4-28Fine0.04 (1.0mm)0.06 (1.5mm)0.16
21504
21504-SH
1/21/411/163/8-24Fine0.06 (1.5mm)0.13 (3.2mm)0.24
21527
21527-SH
1/23/41 3/163/8-16Coarse0.06 (1.5mm)0.13 (3.2mm)0.47
21530
21530-SH
3/411 9/161/2-13Coarse0.06 (1.5mm)0.17 (4.3mm)1.56
21532
21532-SH
11 1/22 3/165/8-11Coarse0.06 (1.5mm)0.17 (4.3mm)4.10




Unless otherwise stated, English units are inches (in) and pounds (lbs) and Metric units are millimeters (mm) and kilograms (kg).