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Pinch Weld Jack Pad Puck
A 74 mm dia x 36 mm tall jack saddle puck that protects a unibody car's pinch weld: a 7 mm wide, 9 mm deep slot with a 45 degree lead-in swallows the folded seam instead of crushing it, while a 45 degree self-centring cone socket underneath (58 mm at the mouth, 20 mm at the apex) seats on any round floor-jack saddle or square jack-stand top in that range. Three radial M4 clearance holes (4.5 mm) at 120 degrees take set screws or a bolt so the puck stays on the saddle when you roll the jack away.
Flagged: automotive electrical. Not for safety-critical use without independent engineering review.
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