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Metric Spacers
Technical / Engineering Data		  
Metric Spacers       Metric e-Catalog

Material / Shape Selection

  MATERIALS

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material / shape code.
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SPECIFICATIONS
ROUND

SQUARE

 HEX

  Brass

 M01 M02 M03 QQ-B- 626 Comp. 22, 1/2 Hard

  Aluminum

 M04 M05 M06 QQ-A- 225a, Comp. 2, T-3

  Stainless Steel

 M07 M08 M09 ASTM-A-581, ASTM-A-582,
QQ-S- 763, Class 303,
Cond. A

  Carbon Steel

 M10 M11 M12 QQ-S- 633, Class 2

  Phenolic

 M13 MIL- I- 24768 / 15

  Teflon®

 M14 MIL- P- 14078

  Nylon

 M17 M18 M19 MIL- P- 17091B, Grade 101

  Lexan®

 M20 MIL- P- 81390

  Delrin®

 M23 M25 LP- 392 A

  Ultem®

 M26     GE 1000 Resins


    RoHS Compliance Statement  I  R.E.A.C.H. Statement  I  DFARS  I  WEEE
Conflict-Free Minerals Statement  I  Harmonized Tariff Codes
 WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov
 
Properties for Non- Metallic Materials

Properties

 Phenolic Teflon® Nylon Lexan®

Delrin®

Ultem®
 Flammability Rating V-1 UL HB UL 94V-2 V-O UL94HB V-O
 Water Absorption (%) 24 hrs. 0.6 - 0.7 .02 1.5 0.15 0.25 0.25
 Dielectric Constant (60 cycles) 5.2 - 5.3 2.1 10 2.9 3.7 3.15
 Dielectric Strength 1/8 thickness
 (v/mil)		 350 400 300- 400 380 500 N/A
 Arc Resistance (sec) 100 200 140 10 129 120
 Tensile Strength (psi) 6,500- 7,000 2,700- 3,100 11,200- 16,500 9,000 10,400 16,500
 Heat Resistance
 (continuous degrees F)		 250- 275 550 250 270 250 340
 Compression Strength (psi) 201- 235 700- 1,200 4,000 - 11,000 12,500 18,000 22,000
 
Plating Selection
Plating Available On These Materials:
Brass,  Aluminum, Stainless Steel & Carbon Steel
AVAILABLE PLATING

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plating code.
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PLATING AVAILABLE ON THIS MATERIAL

APPLICABLE
SPECIFICATIONS
 Anodize (Sulphuric) Dichromate Seal,
 Yellow/Green		 F01 Aluminum Mil-A- 8625F, Type 2
 Anodize (Sulphuric) Hot Water Seal, Clear F02 Aluminum Mil-A- 8625F, Type 2
Class 1
 Anodize (Chromic) Hot Water Seal,
 Dark Gray		 F03 Aluminum Mil-A- 8625F, Type 1
 Anodize- Black F04 Aluminum Mil-A- 8625F- Black
Type 2, Class 2
 Anodize- Black High Lustre F04a Aluminum Mil-A- 8625F-
Black- High Lustre
Type 2, Class 2
 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
 Cadmium Plate, Olive Drab F06a Brass,
Carbon Steel		 QQ-P- 416, Type 2,
Class 3
 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 Stainless Steel Mil-F- 14072E
(EL) E 300
 Bright Dip F11

Brass, Aluminum
 Iridite, Clear F12 Aluminum Mil-C- 5541E
Mil-DTL- 5541F
 Iridite, Gold #14 F13 Aluminum Mil-C- 5541E
Mil-DTL- 5541F
 Alodine 1200 F13a Aluminum  
 Black Oxide, Brass F14

Brass

 Mil-F- 495C
 Black Oxide, Stainless Steel F15 Stainless Steel Mil-C- 13924A, Class 3
 No Finish
 *even if there is no finish- this
  code must be included in part #		 F16

Brass, Aluminum,
Stainless Steel, Carbon Steel &
All Plastics
 Hot Tin Dip F17a Brass,
Carbon Steel		 Mil-T- 10727, Type 2
 Silver Plate F18 Brass,
Carbon Steel		 QQ-S- 365 0.0002
- 0.0003
 Electro Tin F19 Brass,
Carbon Steel		 Mil-T- 10727, Type1
 Electro Tin 60/40 Solder F19a Brass,
Carbon Steel		 M222-Mil-F- 14072
 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)
 Zinc Plate .0002 Thick, Black Chromate F21b Brass,
Carbon Steel		 ASTM-B- 633, Type 2,
(Color Chromate)
 Zinc Plate .0002 Thick, Olive Drab F21c Brass,
Carbon Steel		 ASTM-B- 633, Type 2,
(Color Chromate)
 Alkali Caustic Etch F26 Aluminum

Thread / Inside Hole Diameter
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thread / inside hole code.
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 INSIDE HOLE DIAMETER (SPACERS) DRILL SIZE
(I.D.)		 THREAD MAJOR
THREAD
DIAMETER
A 1.7 - 2.1 1.9 M1.6  x  0.35 1.6
B 2.2 - 2.6 2.3 M2.0  x  0.4 2.0
C 2.7 - 3.1 2.9 M2.5  x  0.45 2.5
D 3.2 - 3.6 3.4 M3.0  x  0.5 3.0
E 3.5 - 4.2 3.8 M3.5  x  0.6 3.5
F 4.2 - 4.8 4.6 M4.0  x  0.7 4.0
G 5.3 - 6.0 5.6 M5.0  x  0.8 5.0
H 6.3 - 7.0 6.7 M6.0  x  1.0 6.0
I 8.4 - 10.0 9.2 M8.0  x  1.25 8.0
J 10.0 - 12.0 11.0 M10.0  x  1.5 10.0
K 12.0 - 14.0 13 M12.0  x  1.75 12.0
L 13.5 - 15.5 14.5 M14.0  x  2.0 14.0
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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