Abstract： ASME B18.29.1:2010 pdf download.Helical Coil Screw Thread Inserts- Free Running and Screw Locking (Inch Series). 2.2 Gages and Gaging Acceptance of the threaded hole is determined by gaging with 511 GO, NOT GO (HI), and plain cylindrical ga...

ASME B18.29.1:2010 pdf download.Helical Coil Screw Thread Inserts- Free Running and Screw Locking (Inch Series).

2.2 Gages and Gaging

Acceptance of the threaded hole is determined by gaging with 511 GO, NOT GO (HI), and plain cylindrical gages designed and applied in accordance with System 21 of ASME B1.3 (see Nonmandatory Appendix C).

3 HELICAL COIL INSERT

3.1 Insert Material

Chemical composition ot the inserts is austeninc corrosion resistant (stainless) steel within the limits of Table 2.

3.2 Properties

3.2.1 Tensile Strength. Wire, before coiling into inserts, shall have tensile strength not lower than 150,000 psi, determined in

accordance with ASTM A 370.

3.2.2 Bending. Wire shall withstand, without cracking, bending in accordance with ASTM E 290 at room temperature through an angle

of 180 deg around a diameter equal to twice the cross-sectional dimension of the wire in the plane of the bend.

3.2.3 Workmanship. The formed wire shall be of uniform quality and temper; smooth, clean, free from kinks, waviness, splits,

cracks, laps, seams, scale, segregation, and other defects that may impair the serviceability of the insert.

3.3 Coatings

3.3.1 Red Dye Identification. Screw-locking inserts are dyed red for identiIication. The red dye may completely or partially cover the insert. However, it must be sufficient to identify the insert when it is installed in the tapped hole.

3.3.2 Dry Film Lubricant Coating. When specified, dry film lubricant coating can be applied to helical coil inserts. It shall meet the requirements of para. 3.3.2.1 and para. 3.3.2.2. Color of dry film lubricated insert is dark gray to black.

3.3.2.1 Dry Film Material. The lubricant shall meet the requirements of SAE AS5272. Type 1.

3.3.2.2 Thickness. The coating shall be uniformly deposited on the insert with minimum thickness being complete coverage.

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