AMC 2026 catalogue

Fasteners

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FASTENERS Thread Inserts

Key Locking Thread Inserts

▪For metal applications; not recommended for cast iron or brittle material Repair damaged threads with a positive mechanical lock, preventing rotational spinout from vibration or torque.

Note: Units measured in inches have an internal thread class of 3B and an external thread class of 2A. Metric units have an internal thread class of 6H and an external thread class of 6G.

Stainless steel and key locking thread insert installation tools are available on Grainger.ca; search for "stainless steel key locking thread inserts" or "key locking thread installation tools".

EXC73051 EXC73041

Internal Thread Size External Thread Size Length Drill Size Installation

Item

No. Heavy Wall 2 Locking Keys 1⁄4"-28 7⁄16"-14 0.370" X Tool 5XA41 EXC74042 4 Locking Keys 5⁄16"-18 1⁄2"-13 0.430" 29⁄64" Tool 5XA42 EXC73052 5⁄16"-24 1⁄2"-13 0.430" 29⁄64" Tool 5XA42 EXC74052 3⁄8"-16 9⁄16"-12 0.500" 33⁄64" Tool 5XA43 EXC73062 3⁄8"-24 9⁄16"-12 0.500" 33⁄64" Tool 5XA43 EXC74062 1⁄2"-20 3⁄4"-16 0.620" 45⁄64" Tool 5XA44 EXC74082 5⁄8"-11 7⁄8"-14 0.870" 53⁄64" Tool 5XA45 EXC73102 3⁄4"-10 1 1⁄8"-12 1.12" 1 1⁄16" Tool 5XA46 EXC73122 Thin Wall 2 Locking Keys #10-24 5⁄16"-18 0.310" I Tool 5XA40 EXC73601 #10-32 5⁄16"-18 0.310" I Tool 5XA40 EXC74601 1⁄4"-20 3⁄8"-16 0.370" Q Tool 5XA41 EXC73041 1⁄4"-28 3⁄8"-16 0.370" Q Tool 5XA41 EXC74041 M5x0.80 M8x1.25 8mm 6.9mm Tool 5XA40 EXC75051 M6x1.00 M10x1.25 10mm 8.8mm Tool 5XA41 EXC75061 4 Locking Keys 5⁄16"-18 7⁄16"-14 0.430" X Tool 5XA42 EXC73051 5⁄16"-24 7⁄16"-14 0.430" X Tool 5XA42 EXC74051 3⁄8"-16 1⁄2"-13 0.500" 29⁄64" Tool 5XA43 EXC73061 3⁄8"-24 1⁄2"-13 0.500" 29⁄64" Tool 5XA43 EXC74061 7⁄16"-14 9⁄16"-12 0.620" 33⁄64" Tool 5XA43 EXC73071 7⁄16"-20 9⁄16"-12 0.620" 33⁄64" Tool 5XA43 EXC74071 1⁄2"-13 5⁄8"-11 0.620" 37⁄64" Tool 5XA44 EXC73081 1⁄2"-20 5⁄8"-11 0.620" 37⁄64" Tool 5XA44 EXC74081 M10x1.25 M14x1.50 14mm 12.80mm Tool 5XA43 EXC77101 M10x1.50 M14x1.50 14mm 12.8mm Tool 5XA43 EXC75101 M12x1.75 M16x1.50 16mm 14.75mm Tool 5XA44 EXC75121 M8x1.00 M12x1.25 12mm 10.80mm Tool 5XA42 EXC77081 M8x1.25 M12x1.25 12mm 10.8mm TWM8 EXC75081

LOKSERT

Helical Wire Thread Inserts

APPROVED VENDOR, HELI-COIL

Internal Thread Size Length Free Coil Dia. Drill Size Drill Size Type Brand

Item

No. Pkg. Qty.

M8 x 1

8mm 12.50mm 8.3mm 8.3mm Free Running Approved Vendor WWG5WZN0 10 8mm 12.50mm 8.3mm 8.3mm Screw Locking Approved Vendor WWG5XAE0 10 16mm 12.50mm 8.3mm 8.3mm Free Running Approved Vendor WWG5WZN2 10

M10 x 1.25 10mm 12.65mm 10.3mm 10.3mm Screw Locking Approved Vendor WWG5XAE6 10 15mm 12.65mm 10.3mm 10.3mm Screw Locking Approved Vendor WWG5XAE7 10 Pipe

1⁄4-18 0.394" 0.680" 33⁄64" 33⁄64" Free Running Approved Vendor WWG5WZK2 10 1⁄8-27 0.273" 0.511" 3⁄8" 3⁄8" Free Running Approved Vendor WWG5WZK1 10 3⁄8-18 0.407" 0.828" 21⁄32" 21⁄32" Free Running Approved Vendor WWG5WZK3 10

Length is installed length.