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  Shoulder Screws
Technical / Engineering Data

  

Shoulder Screws      Standard e-Catalog


Applicable Tolerances
 
For Slotted & Hex Socket Head  (Broached), Torx®, Phillips Head
"B" + .000 / - .001 "C" ± .005 "L" ± .005
 
Material Selection
  MATERIALS MATERIAL / SHAPE CODE
**Included in Part Number
SPECIFICATION
  Brass M01

 QQ-B- 626 b,
 Comp. 22 1/2 Hard

  303 Stainless Steel 303
**Included in Part Number
 ASTM-A581, ASTM-A582,
 QQ-S- 763, Class 303,
 Cond. A
  Carbon Steel M10  QQ-S- 633, Class 2
  316 Stainless Steel 316  QQ-S- 763, Class 316
  416 Stainless Steel 416  AISI 416
  4140 Alloy Steel 4140  AISI 4140


    RoHS Compliance Statement  I  R.E.A.C.H. Statement  I  DFARS  I  WEEE
Conflict-Free Minerals Statement  I  Harmonized Tariff Codes

 
Plating Selection
AVAILABLE PLATING

Choose & write down your OPTIONAL
plating code for stainless steel.
Go to next step

PLATING
AVAILABLE ON THIS MATERIAL

APPLICABLE
SPECIFICATIONS

 Cadmium Plate, Clear Chromate

F05 Brass, Carbon Steel QQ-P- 416, Class 2, Type 2

 Cadmium Plate, Commercial

F05a Brass, Carbon Steel

 Cadmium Plate, Gold Chromate

F06 Brass, Carbon Steel

QQ-P- 416, Class 2, Type 2

 Nickel Plate

F07 Brass, Carbon Steel

QQ-N- 290A, Class 1, Grade F

 Chromium Plate (Bright)

F08 Brass, Carbon Steel QQ-C- 320B, Class 1, Type 1

 Chromium Plate, Engineering

F08a Brass, Carbon Steel QQ-C- 320B, Class 1, Type 2

 Chromium Plate Over
 Nickel Plate

F08c Brass, Carbon Steel

Mil-QQ-C- 320,
Over-Mil-QQ-N-290

 Passivate

F09 303 Stainless Steel,
316 Stainless Steel,
416 Stainless Steel,
4140 Alloy Steel (heads & threads only)

Mil-F- 14072E (EL) E 300

 Black Oxide

F14 Brass, Carbon Steel

Mil-F- 495C

 Black Oxide

F15 303 Stainless Steel,
316 Stainless Steel,
416 Stainless Steel,
4140 Alloy Steel (heads & threads only)
Mil-C- 13924A, Class 3

 No Finish
 *even if there is no finish- this  
 code must be included in part #

F16 Brass,
Stainless Steel,
Carbon Steel

 Zinc Plate .0002 Thick, Clear
 Chromate

F21 Brass, Carbon Steel ASTM-B- 633, Type 1

 Zinc Plate .0002 Thick,  Yellow/Green
 Chromate

F21a Brass, Carbon Steel

ASTM-B- 633, Type 2,
(Color Chromate)

 TICN (Titanium CarboNitride)

F27 303 Stainless Steel,
316 Stainless Steel,
416 Stainless Steel
N/A
 
Applicable Specifications  For Slotted & Hex Socket Head  (Broached)
Stainless Steel

QQ- S- 763, Class 303, Cond. A.

Threads

Class 2A -Per Handbook  H.28, Part 1

 
Thread Information (For Slotted Only)
Thread Width Depth
4- 40 .047 .062
6- 32 .047 .062
8- 32 .047 .062
10- 24 .063 .078
10- 32 .063 .078
1/4- 20 .078 .093
5/16- 18 .094 .109
3/8- 16 .094 .109
 
Thread Information  For Hex Socket Head  (Broached Only)
Thread Hex Socket Head (Broached)
4- 40 5/64 Across the Flats
6- 32 3/32 Across the Flats
8- 32 3/32 Across the Flats
10- 24 3/32 Across the Flats
10- 32 3/32 Across the Flats
1/4- 20 5/32 Across the Flats
5/16- 18 3/16 Across the Flats
3/8- 16 1/4 Across the Flats
 
Thread Information  For Torx® Head
Thread Torx® Head Drive Size
4- 40 T10  
8- 32 T25  
10- 32 T30  
1/4- 20 T45  
5/16- 18 T50  
3/8- 16 T55  
 
Thread Information  For Phillips Head
Thread Phillips Head Drive Size  
4- 40 #1  
8- 32 #2  
10- 32 #2  
1/4- 20 #3  
5/16- 18 #4  
3/8- 16 #4  
 
Thread Locking Products Codes
Choose & write down your
OPTIONAL thread locking code.
Go back to
THREAD LOCKING PRODUCTS
PH ND® PATCH
RP ND®  360° RING-PATCH
PL ND® PELL-IT
MS ND® MICROSPHERES
VT ND® VIBRA-TITE
ST ND® STRIP-THREAD
 

 More Info on ND® Thread Locking Products

Standard in Type 303 Stainless Steel.
Other materials available upon request: Brass and Carbon Steel
For Modified Parts or Engineering Assistance: Unicorp offers your firm engineering and design services for customized or modified parts at no additional charge.
Please call our Engineering Department.
UNICORP, MFR. IDENT. Code No. 04729

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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Mailing Address:  P.O. Box 280,  Orange,  New Jersey  07051-0280  USA

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