Howmet Fastening Systems
Howmet Fastening Systems
Phone: Sales +1 800 992 4444
Technical Support +1 310 784 6409
Email: HFSTechSupport@howmet.com
Website: www.hfs.howmet.com
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Stud - Ring Locked - SF Series
Unit of Measure
« 6 7 8 9 10 

Item #

Material

Heat Treat

Finish

A Nut End Thread Size

B Stud End Thread Size

L ±.015

SFT121-12SA34 N/A 4130 Steel N/A 125,000 PSI UTS min N/A Cadmium plate per QQ-P-416, Type II, Class 3 N/A 0.3750-24 UNF-3A N/A 0.4375-14 N/A 2.125 in
SFT121-12SA35A N/A 4130 Steel N/A 125,000 PSI UTS min N/A Cadmium plate per QQ-P-416, Type II, Class 3 N/A 0.3750-24 UNF-3A N/A 0.4375-14 N/A 2.188 in
SFT121-12SA35 N/A 4130 Steel N/A 125,000 PSI UTS min N/A Cadmium plate per QQ-P-416, Type II, Class 3 N/A 0.3750-24 UNF-3A N/A 0.4375-14 N/A 2.188 in
SFT121-12SA36A N/A 4130 Steel N/A 125,000 PSI UTS min N/A Cadmium plate per QQ-P-416, Type II, Class 3 N/A 0.3750-24 UNF-3A N/A 0.4375-14 N/A 2.250 in
SFT121-12SA36 N/A 4130 Steel N/A 125,000 PSI UTS min N/A Cadmium plate per QQ-P-416, Type II, Class 3 N/A 0.3750-24 UNF-3A N/A 0.4375-14 N/A 2.250 in
SFT121-12SA37A N/A 4130 Steel N/A 125,000 PSI UTS min N/A Cadmium plate per QQ-P-416, Type II, Class 3 N/A 0.3750-24 UNF-3A N/A 0.4375-14 N/A 2.312 in
SFT121-12SA37 N/A 4130 Steel N/A 125,000 PSI UTS min N/A Cadmium plate per QQ-P-416, Type II, Class 3 N/A 0.3750-24 UNF-3A N/A 0.4375-14 N/A 2.312 in
SFT121-12SA38A N/A 4130 Steel N/A 125,000 PSI UTS min N/A Cadmium plate per QQ-P-416, Type II, Class 3 N/A 0.3750-24 UNF-3A N/A 0.4375-14 N/A 2.375 in
SFT121-12SA38 N/A 4130 Steel N/A 125,000 PSI UTS min N/A Cadmium plate per QQ-P-416, Type II, Class 3 N/A 0.3750-24 UNF-3A N/A 0.4375-14 N/A 2.375 in
SFT121-12SA39A N/A 4130 Steel N/A 125,000 PSI UTS min N/A Cadmium plate per QQ-P-416, Type II, Class 3 N/A 0.3750-24 UNF-3A N/A 0.4375-14 N/A 2.438 in
SFT121-12SA39 N/A 4130 Steel N/A 125,000 PSI UTS min N/A Cadmium plate per QQ-P-416, Type II, Class 3 N/A 0.3750-24 UNF-3A N/A 0.4375-14 N/A 2.438 in
SFT121-12SA40A N/A 4130 Steel N/A 125,000 PSI UTS min N/A Cadmium plate per QQ-P-416, Type II, Class 3 N/A 0.3750-24 UNF-3A N/A 0.4375-14 N/A 2.500 in
SFT121-12SA40 N/A 4130 Steel N/A 125,000 PSI UTS min N/A Cadmium plate per QQ-P-416, Type II, Class 3 N/A 0.3750-24 UNF-3A N/A 0.4375-14 N/A 2.500 in
SFT121-12SA41A N/A 4130 Steel N/A 125,000 PSI UTS min N/A Cadmium plate per QQ-P-416, Type II, Class 3 N/A 0.3750-24 UNF-3A N/A 0.4375-14 N/A 2.562 in
SFT121-12SA41 N/A 4130 Steel N/A 125,000 PSI UTS min N/A Cadmium plate per QQ-P-416, Type II, Class 3 N/A 0.3750-24 UNF-3A N/A 0.4375-14 N/A 2.562 in
SFT121-12SA42A N/A 4130 Steel N/A 125,000 PSI UTS min N/A Cadmium plate per QQ-P-416, Type II, Class 3 N/A 0.3750-24 UNF-3A N/A 0.4375-14 N/A 2.625 in
SFT121-12SA42 N/A 4130 Steel N/A 125,000 PSI UTS min N/A Cadmium plate per QQ-P-416, Type II, Class 3 N/A 0.3750-24 UNF-3A N/A 0.4375-14 N/A 2.625 in
SFT121-12SA43A N/A 4130 Steel N/A 125,000 PSI UTS min N/A Cadmium plate per QQ-P-416, Type II, Class 3 N/A 0.3750-24 UNF-3A N/A 0.4375-14 N/A 2.688 in
SFT121-12SA43 N/A 4130 Steel N/A 125,000 PSI UTS min N/A Cadmium plate per QQ-P-416, Type II, Class 3 N/A 0.3750-24 UNF-3A N/A 0.4375-14 N/A 2.688 in
SFT121-12SA44A N/A 4130 Steel N/A 125,000 PSI UTS min N/A Cadmium plate per QQ-P-416, Type II, Class 3 N/A 0.3750-24 UNF-3A N/A 0.4375-14 N/A 2.750 in
SFT121-12SA44 N/A 4130 Steel N/A 125,000 PSI UTS min N/A Cadmium plate per QQ-P-416, Type II, Class 3 N/A 0.3750-24 UNF-3A N/A 0.4375-14 N/A 2.750 in
SFT121-12SA45A N/A 4130 Steel N/A 125,000 PSI UTS min N/A Cadmium plate per QQ-P-416, Type II, Class 3 N/A 0.3750-24 UNF-3A N/A 0.4375-14 N/A 2.812 in
SFT121-12SA45 N/A 4130 Steel N/A 125,000 PSI UTS min N/A Cadmium plate per QQ-P-416, Type II, Class 3 N/A 0.3750-24 UNF-3A N/A 0.4375-14 N/A 2.812 in
SFT121-12SA46A N/A 4130 Steel N/A 125,000 PSI UTS min N/A Cadmium plate per QQ-P-416, Type II, Class 3 N/A 0.3750-24 UNF-3A N/A 0.4375-14 N/A 2.875 in
SFT121-12SA46 N/A 4130 Steel N/A 125,000 PSI UTS min N/A Cadmium plate per QQ-P-416, Type II, Class 3 N/A 0.3750-24 UNF-3A N/A 0.4375-14 N/A 2.875 in
SFT121-12SA47A N/A 4130 Steel N/A 125,000 PSI UTS min N/A Cadmium plate per QQ-P-416, Type II, Class 3 N/A 0.3750-24 UNF-3A N/A 0.4375-14 N/A 2.938 in
SFT121-12SA47 N/A 4130 Steel N/A 125,000 PSI UTS min N/A Cadmium plate per QQ-P-416, Type II, Class 3 N/A 0.3750-24 UNF-3A N/A 0.4375-14 N/A 2.938 in
SFT121-12SA48A N/A 4130 Steel N/A 125,000 PSI UTS min N/A Cadmium plate per QQ-P-416, Type II, Class 3 N/A 0.3750-24 UNF-3A N/A 0.4375-14 N/A 3.000 in
SFT121-12SA48 N/A 4130 Steel N/A 125,000 PSI UTS min N/A Cadmium plate per QQ-P-416, Type II, Class 3 N/A 0.3750-24 UNF-3A N/A 0.4375-14 N/A 3.000 in
SFT121-12SA49A N/A 4130 Steel N/A 125,000 PSI UTS min N/A Cadmium plate per QQ-P-416, Type II, Class 3 N/A 0.3750-24 UNF-3A N/A 0.4375-14 N/A 3.062 in
SFT121-12SA49 N/A 4130 Steel N/A 125,000 PSI UTS min N/A Cadmium plate per QQ-P-416, Type II, Class 3 N/A 0.3750-24 UNF-3A N/A 0.4375-14 N/A 3.062 in
SFT121-12SA50A N/A 4130 Steel N/A 125,000 PSI UTS min N/A Cadmium plate per QQ-P-416, Type II, Class 3 N/A 0.3750-24 UNF-3A N/A 0.4375-14 N/A 3.125 in
SFT121-12SA50 N/A 4130 Steel N/A 125,000 PSI UTS min N/A Cadmium plate per QQ-P-416, Type II, Class 3 N/A 0.3750-24 UNF-3A N/A 0.4375-14 N/A 3.125 in
SFT121-12SA51A N/A 4130 Steel N/A 125,000 PSI UTS min N/A Cadmium plate per QQ-P-416, Type II, Class 3 N/A 0.3750-24 UNF-3A N/A 0.4375-14 N/A 3.188 in
SFT121-12SA51 N/A 4130 Steel N/A 125,000 PSI UTS min N/A Cadmium plate per QQ-P-416, Type II, Class 3 N/A 0.3750-24 UNF-3A N/A 0.4375-14 N/A 3.188 in
SFT121-12SA52A N/A 4130 Steel N/A 125,000 PSI UTS min N/A Cadmium plate per QQ-P-416, Type II, Class 3 N/A 0.3750-24 UNF-3A N/A 0.4375-14 N/A 3.250 in
SFT121-12SA52 N/A 4130 Steel N/A 125,000 PSI UTS min N/A Cadmium plate per QQ-P-416, Type II, Class 3 N/A 0.3750-24 UNF-3A N/A 0.4375-14 N/A 3.250 in
SFT121-12SA53A N/A 4130 Steel N/A 125,000 PSI UTS min N/A Cadmium plate per QQ-P-416, Type II, Class 3 N/A 0.3750-24 UNF-3A N/A 0.4375-14 N/A 3.312 in
SFT121-12SA53 N/A 4130 Steel N/A 125,000 PSI UTS min N/A Cadmium plate per QQ-P-416, Type II, Class 3 N/A 0.3750-24 UNF-3A N/A 0.4375-14 N/A 3.312 in
SFT121-12SA54A N/A 4130 Steel N/A 125,000 PSI UTS min N/A Cadmium plate per QQ-P-416, Type II, Class 3 N/A 0.3750-24 UNF-3A N/A 0.4375-14 N/A 3.375 in
SFT121-12SA54 N/A 4130 Steel N/A 125,000 PSI UTS min N/A Cadmium plate per QQ-P-416, Type II, Class 3 N/A 0.3750-24 UNF-3A N/A 0.4375-14 N/A 3.375 in
SFT121-12SA55A N/A 4130 Steel N/A 125,000 PSI UTS min N/A Cadmium plate per QQ-P-416, Type II, Class 3 N/A 0.3750-24 UNF-3A N/A 0.4375-14 N/A 3.438 in
SFT121-12SA55 N/A 4130 Steel N/A 125,000 PSI UTS min N/A Cadmium plate per QQ-P-416, Type II, Class 3 N/A 0.3750-24 UNF-3A N/A 0.4375-14 N/A 3.438 in
SFT121-12SA56A N/A 4130 Steel N/A 125,000 PSI UTS min N/A Cadmium plate per QQ-P-416, Type II, Class 3 N/A 0.3750-24 UNF-3A N/A 0.4375-14 N/A 3.500 in
SFT121-12SA56 N/A 4130 Steel N/A 125,000 PSI UTS min N/A Cadmium plate per QQ-P-416, Type II, Class 3 N/A 0.3750-24 UNF-3A N/A 0.4375-14 N/A 3.500 in
SFT121-12SA57A N/A 4130 Steel N/A 125,000 PSI UTS min N/A Cadmium plate per QQ-P-416, Type II, Class 3 N/A 0.3750-24 UNF-3A N/A 0.4375-14 N/A 3.562 in
SFT121-12SA57 N/A 4130 Steel N/A 125,000 PSI UTS min N/A Cadmium plate per QQ-P-416, Type II, Class 3 N/A 0.3750-24 UNF-3A N/A 0.4375-14 N/A 3.562 in
SFT121-12SA58A N/A 4130 Steel N/A 125,000 PSI UTS min N/A Cadmium plate per QQ-P-416, Type II, Class 3 N/A 0.3750-24 UNF-3A N/A 0.4375-14 N/A 3.625 in
SFT121-12SA58 N/A 4130 Steel N/A 125,000 PSI UTS min N/A Cadmium plate per QQ-P-416, Type II, Class 3 N/A 0.3750-24 UNF-3A N/A 0.4375-14 N/A 3.625 in
SFT121-12SA59A N/A 4130 Steel N/A 125,000 PSI UTS min N/A Cadmium plate per QQ-P-416, Type II, Class 3 N/A 0.3750-24 UNF-3A N/A 0.4375-14 N/A 3.688 in
SFT121-12SA59 N/A 4130 Steel N/A 125,000 PSI UTS min N/A Cadmium plate per QQ-P-416, Type II, Class 3 N/A 0.3750-24 UNF-3A N/A 0.4375-14 N/A 3.688 in
SFT121-12SA60A N/A 4130 Steel N/A 125,000 PSI UTS min N/A Cadmium plate per QQ-P-416, Type II, Class 3 N/A 0.3750-24 UNF-3A N/A 0.4375-14 N/A 3.750 in
SFT121-12SA60 N/A 4130 Steel N/A 125,000 PSI UTS min N/A Cadmium plate per QQ-P-416, Type II, Class 3 N/A 0.3750-24 UNF-3A N/A 0.4375-14 N/A 3.750 in
SFT121-12SA61A N/A 4130 Steel N/A 125,000 PSI UTS min N/A Cadmium plate per QQ-P-416, Type II, Class 3 N/A 0.3750-24 UNF-3A N/A 0.4375-14 N/A 3.812 in
SFT121-12SA61 N/A 4130 Steel N/A 125,000 PSI UTS min N/A Cadmium plate per QQ-P-416, Type II, Class 3 N/A 0.3750-24 UNF-3A N/A 0.4375-14 N/A 3.812 in
SFT121-12SA62A N/A 4130 Steel N/A 125,000 PSI UTS min N/A Cadmium plate per QQ-P-416, Type II, Class 3 N/A 0.3750-24 UNF-3A N/A 0.4375-14 N/A 3.875 in
SFT121-12SA62 N/A 4130 Steel N/A 125,000 PSI UTS min N/A Cadmium plate per QQ-P-416, Type II, Class 3 N/A 0.3750-24 UNF-3A N/A 0.4375-14 N/A 3.875 in
SFT121-12SA64A N/A 4130 Steel N/A 125,000 PSI UTS min N/A Cadmium plate per QQ-P-416, Type II, Class 3 N/A 0.3750-24 UNF-3A N/A 0.4375-14 N/A 4.000 in
SFT121-12SA64 N/A 4130 Steel N/A 125,000 PSI UTS min N/A Cadmium plate per QQ-P-416, Type II, Class 3 N/A 0.3750-24 UNF-3A N/A 0.4375-14 N/A 4.000 in
SFT121-12SA66A N/A 4130 Steel N/A 125,000 PSI UTS min N/A Cadmium plate per QQ-P-416, Type II, Class 3 N/A 0.3750-24 UNF-3A N/A 0.4375-14 N/A 4.125 in
SFT121-12SA66 N/A 4130 Steel N/A 125,000 PSI UTS min N/A Cadmium plate per QQ-P-416, Type II, Class 3 N/A 0.3750-24 UNF-3A N/A 0.4375-14 N/A 4.125 in
SFT121-12SA68A N/A 4130 Steel N/A 125,000 PSI UTS min N/A Cadmium plate per QQ-P-416, Type II, Class 3 N/A 0.3750-24 UNF-3A N/A 0.4375-14 N/A 4.250 in
SFT121-12SA68 N/A 4130 Steel N/A 125,000 PSI UTS min N/A Cadmium plate per QQ-P-416, Type II, Class 3 N/A 0.3750-24 UNF-3A N/A 0.4375-14 N/A 4.250 in
SFT121-12SA70A N/A 4130 Steel N/A 125,000 PSI UTS min N/A Cadmium plate per QQ-P-416, Type II, Class 3 N/A 0.3750-24 UNF-3A N/A 0.4375-14 N/A 4.375 in
SFT121-12SA70 N/A 4130 Steel N/A 125,000 PSI UTS min N/A Cadmium plate per QQ-P-416, Type II, Class 3 N/A 0.3750-24 UNF-3A N/A 0.4375-14 N/A 4.375 in
SFT121-12SA72A N/A 4130 Steel N/A 125,000 PSI UTS min N/A Cadmium plate per QQ-P-416, Type II, Class 3 N/A 0.3750-24 UNF-3A N/A 0.4375-14 N/A 4.625 in
SFT121-12SA72 N/A 4130 Steel N/A 125,000 PSI UTS min N/A Cadmium plate per QQ-P-416, Type II, Class 3 N/A 0.3750-24 UNF-3A N/A 0.4375-14 N/A 4.625 in
SFT121-12SA74A N/A 4130 Steel N/A 125,000 PSI UTS min N/A Cadmium plate per QQ-P-416, Type II, Class 3 N/A 0.3750-24 UNF-3A N/A 0.4375-14 N/A 4.750 in
SFT121-12SA74 N/A 4130 Steel N/A 125,000 PSI UTS min N/A Cadmium plate per QQ-P-416, Type II, Class 3 N/A 0.3750-24 UNF-3A N/A 0.4375-14 N/A 4.750 in
SFT121-12SA76A N/A 4130 Steel N/A 125,000 PSI UTS min N/A Cadmium plate per QQ-P-416, Type II, Class 3 N/A 0.3750-24 UNF-3A N/A 0.4375-14 N/A 4.875 in
SFT121-12SA76 N/A 4130 Steel N/A 125,000 PSI UTS min N/A Cadmium plate per QQ-P-416, Type II, Class 3 N/A 0.3750-24 UNF-3A N/A 0.4375-14 N/A 4.875 in
SF131-13SA12A N/A 4130 Steel N/A 125,000 PSI UTS min N/A Cadmium plate per QQ-P-416, Type II, Class 3 N/A 0.4375-20 UNF-3A N/A 0.5000-13 N/A 0.750 in
SF131-13SA12 N/A 4130 Steel N/A 125,000 PSI UTS min N/A Cadmium plate per QQ-P-416, Type II, Class 3 N/A 0.4375-20 UNF-3A N/A 0.5000-13 N/A 0.750 in
SFT131-13SA13A N/A 4130 Steel N/A 125,000 PSI UTS min N/A Cadmium plate per QQ-P-416, Type II, Class 3 N/A 0.4375-20 UNF-3A N/A 0.5000-13 N/A 0.812 in
SFT131-13SA13 N/A 4130 Steel N/A 125,000 PSI UTS min N/A Cadmium plate per QQ-P-416, Type II, Class 3 N/A 0.4375-20 UNF-3A N/A 0.5000-13 N/A 0.812 in
SFT131-13SA14A N/A 4130 Steel N/A 125,000 PSI UTS min N/A Cadmium plate per QQ-P-416, Type II, Class 3 N/A 0.4375-20 UNF-3A N/A 0.5000-13 N/A 0.875 in
SFT131-13SA14 N/A 4130 Steel N/A 125,000 PSI UTS min N/A Cadmium plate per QQ-P-416, Type II, Class 3 N/A 0.4375-20 UNF-3A N/A 0.5000-13 N/A 0.875 in
SFT131-13SA15A N/A 4130 Steel N/A 125,000 PSI UTS min N/A Cadmium plate per QQ-P-416, Type II, Class 3 N/A 0.4375-20 UNF-3A N/A 0.5000-13 N/A 0.938 in
SFT131-13SA15 N/A 4130 Steel N/A 125,000 PSI UTS min N/A Cadmium plate per QQ-P-416, Type II, Class 3 N/A 0.4375-20 UNF-3A N/A 0.5000-13 N/A 0.938 in
SFT131-13SA16A N/A 4130 Steel N/A 125,000 PSI UTS min N/A Cadmium plate per QQ-P-416, Type II, Class 3 N/A 0.4375-20 UNF-3A N/A 0.5000-13 N/A 1.000 in
SFT131-13SA16 N/A 4130 Steel N/A 125,000 PSI UTS min N/A Cadmium plate per QQ-P-416, Type II, Class 3 N/A 0.4375-20 UNF-3A N/A 0.5000-13 N/A 1.000 in
SFT131-13SA17A N/A 4130 Steel N/A 125,000 PSI UTS min N/A Cadmium plate per QQ-P-416, Type II, Class 3 N/A 0.4375-20 UNF-3A N/A 0.5000-13 N/A 1.062 in
SFT131-13SA17 N/A 4130 Steel N/A 125,000 PSI UTS min N/A Cadmium plate per QQ-P-416, Type II, Class 3 N/A 0.4375-20 UNF-3A N/A 0.5000-13 N/A 1.062 in
SFT131-13SA18A N/A 4130 Steel N/A 125,000 PSI UTS min N/A Cadmium plate per QQ-P-416, Type II, Class 3 N/A 0.4375-20 UNF-3A N/A 0.5000-13 N/A 1.125 in
SFT131-13SA18 N/A 4130 Steel N/A 125,000 PSI UTS min N/A Cadmium plate per QQ-P-416, Type II, Class 3 N/A 0.4375-20 UNF-3A N/A 0.5000-13 N/A 1.125 in
SFT131-13SA19A N/A 4130 Steel N/A 125,000 PSI UTS min N/A Cadmium plate per QQ-P-416, Type II, Class 3 N/A 0.4375-20 UNF-3A N/A 0.5000-13 N/A 1.188 in
SFT131-13SA19 N/A 4130 Steel N/A 125,000 PSI UTS min N/A Cadmium plate per QQ-P-416, Type II, Class 3 N/A 0.4375-20 UNF-3A N/A 0.5000-13 N/A 1.188 in
SFT131-13SA20A N/A 4130 Steel N/A 125,000 PSI UTS min N/A Cadmium plate per QQ-P-416, Type II, Class 3 N/A 0.4375-20 UNF-3A N/A 0.5000-13 N/A 1.250 in
SFT131-13SA20 N/A 4130 Steel N/A 125,000 PSI UTS min N/A Cadmium plate per QQ-P-416, Type II, Class 3 N/A 0.4375-20 UNF-3A N/A 0.5000-13 N/A 1.250 in
SFT131-13SA21A N/A 4130 Steel N/A 125,000 PSI UTS min N/A Cadmium plate per QQ-P-416, Type II, Class 3 N/A 0.4375-20 UNF-3A N/A 0.5000-13 N/A 1.312 in
SFT131-13SA21 N/A 4130 Steel N/A 125,000 PSI UTS min N/A Cadmium plate per QQ-P-416, Type II, Class 3 N/A 0.4375-20 UNF-3A N/A 0.5000-13 N/A 1.312 in
SFT131-13SA22A N/A 4130 Steel N/A 125,000 PSI UTS min N/A Cadmium plate per QQ-P-416, Type II, Class 3 N/A 0.4375-20 UNF-3A N/A 0.5000-13 N/A 1.375 in
SFT131-13SA22 N/A 4130 Steel N/A 125,000 PSI UTS min N/A Cadmium plate per QQ-P-416, Type II, Class 3 N/A 0.4375-20 UNF-3A N/A 0.5000-13 N/A 1.375 in
SFT131-13SA23A N/A 4130 Steel N/A 125,000 PSI UTS min N/A Cadmium plate per QQ-P-416, Type II, Class 3 N/A 0.4375-20 UNF-3A N/A 0.5000-13 N/A 1.438 in
SFT131-13SA23 N/A 4130 Steel N/A 125,000 PSI UTS min N/A Cadmium plate per QQ-P-416, Type II, Class 3 N/A 0.4375-20 UNF-3A N/A 0.5000-13 N/A 1.438 in
SFT131-13SA24A N/A 4130 Steel N/A 125,000 PSI UTS min N/A Cadmium plate per QQ-P-416, Type II, Class 3 N/A 0.4375-20 UNF-3A N/A 0.5000-13 N/A 1.500 in
SFT131-13SA24 N/A 4130 Steel N/A 125,000 PSI UTS min N/A Cadmium plate per QQ-P-416, Type II, Class 3 N/A 0.4375-20 UNF-3A N/A 0.5000-13 N/A 1.500 in
SFT131-13SA25A N/A 4130 Steel N/A 125,000 PSI UTS min N/A Cadmium plate per QQ-P-416, Type II, Class 3 N/A 0.4375-20 UNF-3A N/A 0.5000-13 N/A 1.562 in
SFT131-13SA25 N/A 4130 Steel N/A 125,000 PSI UTS min N/A Cadmium plate per QQ-P-416, Type II, Class 3 N/A 0.4375-20 UNF-3A N/A 0.5000-13 N/A 1.562 in
SFT131-13SA26A N/A 4130 Steel N/A 125,000 PSI UTS min N/A Cadmium plate per QQ-P-416, Type II, Class 3 N/A 0.4375-20 UNF-3A N/A 0.5000-13 N/A 1.625 in
Unit of Measure
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