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THREAD: AS8879
MATERIAL:
  • A286 Corrosion resistant steel per AMS5731 or AMS5734 (UNS S66286).
HEAT TREAT: Per AMS - H - 6875
FINISH:
  • Passivate per AMS2700, coat with dry film lubricant per AS5272, Type I, plus (optional) cetyl alcohol lubricant.
PERFORMANCE: ENS1312
Unit of Measure

Specifications

A

0.418-0.424 in

B

0.268-0.274 in

C

0.359 in

D

0.323 in

L - MAX

0.340 in

M - MAX

0.323 in

X

0.097 in

Drive Tool Dash No.

-8

Axial Tensile Strength lbf Min

5000.000 lb

Thread per AS8879

0.2500-28 UNJF-3B

Material

Stainless Steel

Heat Treat

per AMS-H-6875

Finish

Passivate per AMS2700, coat with dry film lubricant per AS5272, Type 1, plus (optional) cetyl alcohol lubricant.

Performance

ENSI312

Nominal Stud Nut Size

1/4-28

Notes

Notes

1. Dimensions to be met after finish, but before lubrication.
2. Shear rated A286 Corrosion resistant steel EDDIE-NUTS™ are identified with yellow paint within lobe area as shown. All three lobes shall be completely covered with paint on a minimum of 95% of the lobe area of each part. Overspray permitted on exterior surfaces.
3. All EDDIE-NUTS™ must be instelled using an appropriate DELTA-RAD™ EDDIE-BOLT® installation tool.
4. Nuts shall be packaged in clear, sealed plastic bags. Each bag shall contain a maximum of 100 nuts per diameter. Each bag shall be marked with "EDDIE-NUTS™", Manufacturer´s complate part number, Manufacturer´s lot number, Manufacturer´s lot number, Manufacturer´s name and "PACK" date.