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$0.00 / Each
Stanley Engineered Fastening

Spiralock, Drive Notch, Wire Insert, 1/4-28 Thread Size, 1.5D, Dry-Film Lube, Bulk.

Part #1288679

MFG #SPL96201DN352B

Spiralock, Drive Notch, Wire Insert, 1/4-28 Thread Size, 1.5D, Dry-Film Lube, Bulk.
$0.00 / Each
Spiralock inserts are made of cold-rolled Type 304 stainless steel wire (AS7245), work-hardened to a tensile strength above 200,000 psi, having a hardness of Rc43-50. The finished surface (8-16 micro inches) is exceedingly smooth, virtually eliminating friction-induced thread erosion.
FEATURES:
  • Threads into (Screw Thread Insert) STI holes per NASM33537
  • Accepts standard 2A/3A bolts (4g6g and 6g)
  • Spiralock insert meets or exceeds the applicable parts of NASM8846, e.g. the wire tensile strength, chemical composition, and methods of inspection
  • Spiralock insert is not a prevailing torque-type screw-locking insert—no risk of galling or seizing of bolt and insert
  • Similar to NASM1130 inserts
  • Provides proven superior vibration resistance to standard locking inserts