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Torx® Head Shoulder Screws
1/2" Head Diameter
Available in 303, 316, 416 Stainless Steel, 4140 Alloy Steel,
Brass and Carbon Steel all with or without plating


Back To Shoulder Screws Page
*External Thread has a 45 °Angle on External Thread.
Slightly Chamfered to Permit Smooth Entry / Fit.
  • 303 Stainless Steel • 316 Stainless Steel • 416 Stainless Steel • 4140 Alloy Steel  
    • Brass • Carbon Steel    
CHOOSE and write down your PART NUMBER
then Go to     Skip Step 1
303 Stainless Steel

    Part Number

 A B C D L Thread Drive Size
   SCTX500- 1 1/2 5/16 7/32 7/16 .250 1/4 - 20 T45
   SCTX500- 2 1/2 5/16 7/32 7/16 .313 1/4 - 20 T45
   SCTX500- 3 1/2 5/16 7/32 7/16 .375 1/4 - 20 T45
   SCTX500- 4 1/2 5/16 7/32 7/16 .500 1/4 - 20 T45
   SCTX500- 5 1/2 5/16 7/32 7/16 .625 1/4 - 20 T45
   SCTX500- 6 1/2 5/16 7/32 7/16 .750 1/4 - 20 T45
   SCTX500-375-2 1/2 3/8 7/32 7/16 .313 1/4 - 20 T45
   SCTX500-375-3 1/2 3/8 7/32 7/16 .375 1/4 - 20 T45
   SCTX500-75-4 1/2 3/8 7/32 7/16 .500 1/4 - 20 T45
   SCTX500-375-5 1/2 3/8 7/32 7/16 .625 1/4 - 20 T45
316 Stainless Steel

    Part Number

 A B C D L Thread Drive Size
   SCTX500-316- 1 1/2 5/16 7/32 7/16 .250 1/4 - 20 T45
   SCTX500-316- 2 1/2 5/16 7/32 7/16 .313 1/4 - 20 T45
   SCTX500-316- 3 1/2 5/16 7/32 7/16 .375 1/4 - 20 T45
   SCTX500-316- 4 1/2 5/16 7/32 7/16 .500 1/4 - 20 T45
   SCTX500-316- 5 1/2 5/16 7/32 7/16 .625 1/4 - 20 T45
   SCTX500-316- 6 1/2 5/16 7/32 7/16 .750 1/4 - 20 T45
   SCTX500-375-316- 2 1/2 3/8 7/32 7/16 .313 1/4 - 20 T45
   SCTX500-375-316- 3 1/2 3/8 7/32 7/16 .375 1/4 - 20 T45
   SCTX500-375-316- 4 1/2 3/8 7/32 7/16 .500 1/4 - 20 T45
   SCTX500-375-316- 5 1/2 3/8 7/32 7/16 .625 1/4 - 20 T45
416 Stainless Steel

    Part Number

 A B C D L Thread Drive Size
   SCTX500-416- 1 1/2 5/16 7/32 7/16 .250 1/4 - 20 T45
   SCTX500-416- 2 1/2 5/16 7/32 7/16 .313 1/4 - 20 T45
   SCTX500-416- 3 1/2 5/16 7/32 7/16 .375 1/4 - 20 T45
   SCTX500-416- 4 1/2 5/16 7/32 7/16 .500 1/4 - 20 T45
   SCTX500-416- 5 1/2 5/16 7/32 7/16 .625 1/4 - 20 T45
   SCTX500-416- 6 1/2 5/16 7/32 7/16 .750 1/4 - 20 T45
   SCTX500-375-416- 2 1/2 3/8 7/32 7/16 .313 1/4 - 20 T45
   SCTX500-375-416- 3 1/2 3/8 7/32 7/16 .375 1/4 - 20 T45
   SCTX500-375-416- 4 1/2 3/8 7/32 7/16 .500 1/4 - 20 T45
   SCTX500-375-416- 5 1/2 3/8 7/32 7/16 .625 1/4 - 20 T45
4140 Alloy Steel

    Part Number

 A B C D L Thread Drive Size
   SCTX500-4140- 1 1/2 5/16 7/32 7/16 .250 1/4 - 20 T45
   SCTX500-4140- 2 1/2 5/16 7/32 7/16 .313 1/4 - 20 T45
   SCTX500-4140- 3 1/2 5/16 7/32 7/16 .375 1/4 - 20 T45
   SCTX500-4140- 4 1/2 5/16 7/32 7/16 .500 1/4 - 20 T45
   SCTX500-4140- 5 1/2 5/16 7/32 7/16 .625 1/4 - 20 T45
   SCTX500-4140- 6 1/2 5/16 7/32 7/16 .750 1/4 - 20 T45
   SCTX500-375-4140 -2 1/2 3/8 7/32 7/16 .313 1/4 - 20 T45
   SCTX500-375-4140 -3 1/2 3/8 7/32 7/16 .375 1/4 - 20 T45
   SCTX500-375-4140 -4 1/2 3/8 7/32 7/16 .500 1/4 - 20 T45
   SCTX500-375-4140 -5 1/2 3/8 7/32 7/16 .625 1/4 - 20 T45
Brass

    Part Number

 A B C D L Thread Drive Size
   SCTX500- 1 1/2 5/16 7/32 7/16 .250 1/4 - 20 T45
   SCTX500- 2 1/2 5/16 7/32 7/16 .313 1/4 - 20 T45
   SCTX500- 3 1/2 5/16 7/32 7/16 .375 1/4 - 20 T45
   SCTX500- 4 1/2 5/16 7/32 7/16 .500 1/4 - 20 T45
   SCTX500- 5 1/2 5/16 7/32 7/16 .625 1/4 - 20 T45
   SCTX500- 6 1/2 5/16 7/32 7/16 .750 1/4 - 20 T45
   SCTX500-375- 2- M01 1/2 3/8 7/32 7/16 .313 1/4 - 20 T45
   SCTX500-375- 3- M01 1/2 3/8 7/32 7/16 .375 1/4 - 20 T45
   SCTX500-375- 4- M01 1/2 3/8 7/32 7/16 .500 1/4 - 20 T45
   SCTX500-375- 5- M01 1/2 3/8 7/32 7/16 .625 1/4 - 20 T45
Carbon Steel

    Part Number

 A B C D L Thread Drive Size
   SCTX500- 1 1/2 5/16 7/32 7/16 .250 1/4 - 20 T45
   SCTX500- 2 1/2 5/16 7/32 7/16 .313 1/4 - 20 T45
   SCTX500- 3 1/2 5/16 7/32 7/16 .375 1/4 - 20 T45
   SCTX500- 4 1/2 5/16 7/32 7/16 .500 1/4 - 20 T45
   SCTX500- 5 1/2 5/16 7/32 7/16 .625 1/4 - 20 T45
   SCTX500- 6 1/2 5/16 7/32 7/16 .750 1/4 - 20 T45
   SCTX500-375- 2- M10 1/2 3/8 7/32 7/16 .313 1/4 - 20 T45
   SCTX500-375- 3- M10 1/2 3/8 7/32 7/16 .375 1/4 - 20 T45
   SCTX500-375- 4- M10 1/2 3/8 7/32 7/16 .500 1/4 - 20 T45
   SCTX500-375- 5- M10 1/2 3/8 7/32 7/16 .625 1/4 - 20 T45

Applicable Tolerances
B C L
+.000  / - .001 ± .005 ± .005
Applicable Specifications
Stainless Steel Passivate Threads
QQ- S- 763, Class 303, Cond. A. Per Mil-F-14072-A
(EL) E 300 		Class 2A per handbook
H.28, Part 1
 
Standard in Type 303 Stainless Steel.
Other materials available: 316 Stainless Steel, 416 Stainless Steel, 4140 Alloy Steel, Brass, Carbon Steel

Phone:  973-674-1700        Toll Free:  1-800-526-1389        Fax:  973-674-3803

UNICORP is a leader in manufacturing stock and custom
electronic hardware, handles and precision fasteners used by leading companies
in nearly every industry since 1971.


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