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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 QQ-S- 763, Class 303, Cond. A
(Non- Magnetic)

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    DFARS    WEEE

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 / Finish Selection
Finishes Available On These Materials:
Brass,  Aluminum, Stainless Steel & Carbon Steel
STANDARD FINISHES

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Next Step
 

FINISH AVAILABLE ON THIS MATERIAL

APPLICABLE
SPECIFICATIONS

Anodize (Sulphuric)
Dichromate Seal, Yellow/Green
F01 Aluminum Mil-A- 8625C- Type 2
Anodize (Sulphuric) Hot Water Seal, Clear F02 Aluminum Mil-A- 8625C- Type 2
Class 1
Anodize (Chromic) Hot Water Seal, Dark Gray F03 Aluminum Mil-A- 8625-C-Type1
Anodize- Black F04 Aluminum Mil-A- 8625C-Black
Type 2, Class 2
Anodize- Black High Lustre F04a Aluminum Mil-A- 8625C-
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
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 FO8c 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

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)
Alkali Caustic Etch F26 Aluminum
Thread / Inside Hole Diameter
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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
 Toll Free: 1- 800- 526- 1389         Phone: 973- 674-1700         Fax: 973- 674- 3803
UNICORP is a worldwide leader in manufacturing stock and custom electronic hardware,
handles and precision fasteners used by leading companies in nearly every industry since 1971.


Unicorp,  291 Cleveland St., Orange, New Jersey  07050  USA

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