Wire spring BJ747 series

carbon steelsteelcorrosion-resistant

Product Overview
Used with a strap clamp to retract the clamp from the workpiece. The thumb screw allows for adjustment of the spring tension. Spring made from heat-treated steel spring wire. Pad made from 1045 alloy steel with a black oxide finish.

Part Options

• ID 150209 — SKU BJ747-06001 — Thread M4x0.70 — D 14 mm — D1 6.5 mm — D2 21 mm — H 18 to 26 mm
• ID 130602 — SKU BJ747-08001 — Thread M4x0.70 — D 16 mm — D1 8.5 mm — D2 21 mm — H 19 to 29 mm
• ID 130605 — SKU BJ747-10001 — Thread M4x0.70 — D 20 mm — D1 10.5 mm — D2 21 mm — H 25 to 40 mm
• ID 130608 — SKU BJ747-12001 — Thread M4x0.70 — D 25 mm — D1 13.0 mm — D2 21 mm — H 30 to 46 mm
• ID 130610 — SKU BJ747-16001 — Thread M5x0.80 — D 28 mm — D1 16.5 mm — D2 21 mm — H 35 to 50 mm
• ID 150210 — SKU BJ747-20001 — Thread M5x0.80 — D 32 mm — D1 20.5 mm — D2 21 mm — H 40 to 63 mm
• ID 150211 — SKU BJ747-24001 — Thread M5x0.80 — D 40 mm — D1 24.5 mm — D2 21 mm — H 51 to 71 mm

Available Sizes / Selections
Contact Surface Diameter mm

• 14
• 16
• 20
• 25
• 28
• 32
• 40

Overall Height mm

• 18 to 26
• 19 to 29
• 25 to 40
• 30 to 46
• 35 to 50
• 40 to 63
• 51 to 71

Media & Documentation
Specifications sheet (PDF) available for the BJ747 product.

Features / Technical Specifications

• Model: BJ747
• Product type: Spring supports for strap clamps (Strap Clamp Accessories)
• Function: Retracts strap clamp from workpiece; adjustable spring tension via thumb screw
• Spring material: Heat-treated steel spring wire
• Pad material: 1045 alloy steel with black oxide finish
• Applicable thread sizes: M4x0.70 and M5x0.80 depending on part number
• Multiple part numbers/sizes available with contact diameters from 14 mm to 40 mm and overall height ranges as listed above