Nylon 6/6 meets MIL-M20693B "A" Type 1, LP410A, and ASTM D789-66 Type 1, GDE 2.

All tests performed per ASTM specifications.  Parts molded in Nylon 6/6, dry as molded, unmoisturized, at 73o F / 23o C.

Data listed is for informational purposes only shall not be used to establish specifications limits or used alone as the basis of design.

Machine Screws

TENSILE TEST
MAX TORQUE

DOUBLE
SHEAR

SIZE

ULTIMATE
TORQUE

BEFORE
DEFORMATION

YIELD
LBS.

BREAK
LBS.

YIELD
LBS.

BREAK
LBS.
256

---NO TEST---

---NO TEST---

16

19

------NO TEST------
440

24 In. Oz.

12-16 In. Oz.

38

41

45

50
632

30 In. Oz.

18-20 In. Oz.

65

69

91

97
832

5 In. Lbs

2-3 In. Lbs.

99

108

158

164
1024

6 In. Lbs.

2-4 In. Lbs.

139

149

187

257
1032

7 In. Lbs.

3-4 In. Lbs.

155

165

234

241
1/4-20

13 In. Lbs.

9-10 In. Lbs.

296

312

413

432

Metric Machine Screws

TENSILE TEST
MAX TORQUE

DOUBLE
SHEAR

SIZE

ULTIMATE
TORQUE

BEFORE
DEFORMATION

YIELD
LBS.

BREAK
LBS.

YIELD
LBS.

BREAK
LBS.
M2 X .4

NO TEST

NO TEST

7.12 N.

N/B

89 N.

116 N.
M2.5 X .45

NO TEST

NO TEST

8.9 N.

N/B

156 N.

169 N.
M3 X .5

.32 Nm.

.2 - .26 Nm.

22 N.

N/B

294 N.

329 N.
M3.5 X .6

.43 N.

.28 - .34 Nm.

53 N.

N/B

378 N.

405 N.
M4 X .7

.45 Nm.

.36 - .43 Nm.

214 N.

N/B

600 N.

636 N.
M5 X .8

.93 Nm.

.73 - .79 Nm.

271 N.

N/B

1081 N.

1134 N.
M6 X .1

1.83 Nm.

1.41 - 1.47 Nm.

845 N.

912 N.

1806 N.

1877 N.
M8 X 1.25

3.39 Nm.

2.45 - 2.82 Nm.

1.677 N.

1744 N

2980 N.

3034 N.
M10 X 1.50

5.31 Nm.

4.52 - 4.86 Nm.

2749 N.

N/B

5026 N.

5280 N.

Hex Nuts

SIZE

#1
TENSILE LBS.

#2
TENSILE TORQUE

RECOMMENDED TORQUE
BEFORE DEFORMATION
440

85

2 In. Lbs.

1.5 In. Lbs.
632

135

5.2 In. Lbs.

4 In. Lbs.
832

172

6.8 In. Lbs.

5 In. Lbs.
1024

211

7 In. Lbs.

5.5 In. Lbs.
1032

276

8 In. Lbs.

6.5 In. Lbs.
1/4-20

311

19.3 In. Lbs.

17 In. Lbs.
5/16-18

877

44.3 In. Lbs.

42 In. Lbs.
3/8-16

994

74 In. Lbs.

72 In. Lbs.
1/2-13

2,367

15.7 Ft. Lbs.

13 Ft. Lbs.
5/8-11

3,487

31.7 Ft. Lbs.

30 Ft. Lbs.

Test #1 Pull Test - Nylon Nut on Metal Screw     Test #2 Torque - Nylon Nut on Metal Screw

Metric Hex Nuts

SIZE

TENSILE

ULTIMATE TORQUE
M2

NO TEST

NO TEST
M2.5

135.23 N.

NO TEST
M3

142.34 N.

NO TEST
M3.5

369.20 N.

2.3 CM/KG
M4

451.94 N.

4.5 CM/KG
M5

940.35 N.

8.3
M6

1556.65 N.

17.6 CM/KG
M8

2597.76 N.

56.2 CM/KG
M10

6283.11 N.

89.93 CM/KG

Cap Screws

 

TENSILE TEST
MAX. TORQUE

DOUBLE
SHEAR

SIZE

ULTIMATE
TORQUE

BEFORE
DEFORMATION

YIELD
LBS.

BREAK
LBS.

YIELD
LBS.

BREAK
LBS.
1/4-20

19 In. Lbs.

15-16 In. Lbs.

200

228

413

432
5/16-18

37 In. Lbs.

32-34 In. Lbs.

403

424

866

880
3/8-16

49 In. Lbs.

45-46 In. Lbs.

480

513

1108

1173
1/2-13

11 Ft. Lbs.

7-8 Ft. Lbs.

1393

1425

2276

2313
5/8-11

22 Ft. Lbs.

18-19 Ft. Lbs.

2260

2303

3340

3410

Nylon 6/6 Mechanical Properties (73o F / 23o C)

Tensile Strength

D638

12,000 psi.

82.7 MPa
Elongation

D638

60%

60%
Shear Strength

D732

9,600 psi.

66.2 MPa
Flexuaral Modulus

D790

410,000 psi.

2.,287 MPa
Impact Strength

D256

1.0 ft/lb/in

5.5 kg/cm2
Hardness

D785

R121

M79
Specific Gravity

D792

1.13

1.13
Melting Point

D789

500 F

260o C
Dielectric Strength

D149

600 v/mil

10 OHM-CM
Underwriters Laboratory Rating

BUL. 94

94V2

94V2

Properties of Plastic Fasteners

PROPERTY

ASTM
Method

PVC

 Nylon 66 Acetal

Lexan

 Kel-F CPVC Kynar

Teflon

 Polypro-pylene

Gravity

 D792 1.35-1.45 1.09-1.14 1.410-1.425 1.2 2.1-2.2 1.55

1.77

2.18

 .91
Tensile strength, psi D638,
D651		 5,000-9,000

7,000-12,000

8,800-10,000

8,000-9,500

4,300-5,700

 8,400

6,200

2.000

4,700
Elongation %

D638

 2.0-40 25-200 15-40 (inj)
75 (extr)		 60-100 100-200 — 200 300 400
Modulus of elasticity in tension, 105 psi

D747

 3.5-6 2.6-4.0 3.75-4.10 3.2 1.8-3 — — — —

Compressive strength, psi

D695

10,000-16,000

7,200-13,000

 18,000 11,000

32,000-80,000

 13,575

8,700

1,700

6,500
Flexural strength, psi

D790

10,000-16,000

8,000-13,800

12,000-14,000

11,000-13,000

7,400-9,300

        
Hardness Rockwell

D785

70-90(Shore)

 R111-R118

M76-M94,R118

 M70,R118 R110-R115 R115 109 50 90
Thermal conductivity

C177

 3.0-7.0 5.85 5.5 4.6 5-6 — 3.0 6.0 2.8
Thermal expansion,
105 per °C

D696

 5-18.5 10-15 8.1-8.3 X 103 7 4.5-7.0 x 105

4.1

      
Resistance to heat, °F(continuous) — 120-160 270-300 185-250 250 350-390 264 PSI
185		 329 621 335
Deflection temperature under load °F

D648

 130-165 300-360
(66 psi)		 255
(64 psi)		 270-280
(264 psi)		 — — 300

 

 250 221
Volume resistivity

D257

 >1016

(0.45-4) x 1014

1 x 1013-6 x 1014

 2.1 x 1016 1.2 x 1018 —

2 x 1014

 1018 1016
Dielectric strength

D149

 425-1,300 385-470 4654-12005 400 530 1,250 260 480 550
Dielectric constant,
60 cycles

D150

 3.2-3.6 41-4.6 — 3.17 2.24-2.8 —   — —
Dielectric constant,
103 cycles

D150

 3.0-3.3 4.0-4.5 3.7-3.8 3.02 2.3-2.7 — — — —

Dissipation (power) factor,
103 cycles

D150

 0.007-0.02 0.014-0.04 — 0.0009 0.0012 — — — —

Dissipation (power) factor
103 cycles

D150

 0.009-0.017 0.02-0.04 0.004 0.0021

0.0036-0.027

 — — — —
Water absorption, 24 hour, 1/8" thickness, %

D570

 0.07-0.4 0.4-1.5 0.12-0.25 0.15 0.00 .05 — —

 

 —
Burning rate

D635

 Self
Extinguishing		 Self
Extinguishing		 Slow Self
Extinguishing		 None Self
Extinguishing		 Good Excellent
 		 Fair

Additional Information

  Nylon 6/6 Nylon 6/6 Impact Modified Nylon 6/6 33% Glassfilled Nylon 46 Nylon 6/6 Flame Ret.  
Property ASTM Method Units Dry Moist Dry Moist Dry Moist Dry Moist Dry Moist Nylatron GS Acetal Copolymer HDPE Polycarbonate Polypropylene
Mechanical Properties
Tensile Stength D638 PSI 12,000 11,000 7,900   28,000 22,000 14,400 9,400 11,600 6,500 13,500 8,800 2,470 10,300 4,700
Tensile Impact Stength D1822 FT LB/IN2                     110 70   220  
Tensile Modulus D638 PSI 232,000   232,000       435,000 145,000 520,000 290,000 550,000 410,000   340,000 165,000
Elongation D638 %                              
Break     40-60 300 150 170 4 5 30/25 280/250   10 15 60 700 150 9
Yield                               7  
Shear Strength D732 PSI 9,500 8,200 6,900   13,000 10,100         10,500 7,700      
Flexural Modulus D790 PSI 410,000 185,000 220,000 100,000 1,300,000 900,000 460,000 145,000 250,000   460,000 375,000 146,000 350,000 210,000
Impact Strength D256 FT LB/IN 1 2.1 17 NO BRK 2.2 2.6 1.8 7.5 1.5   0.7 1.3 2.3 16 0.6
Coeffecient of Friction                                  
Static     0.31                   0.26        
Dynamic     0.17                   0.25 0.15      
Thermal Properties
Deflection Temperature D648 oF                              
66 PSI     470   340   495       435     316   275 220
264 PSI     170   140   485   320   195   210 230   260 120
Softening Point D1525 oF                         256 309 305
Melting Point D789 oF 500   500   505   563   470   480 329 270 309 320
Peak Temperature   oF             425                
Continuous Use Temperature   oF 185           311   220     220      
Physical Properties
Specific Gravity D792   1.14   1.07   1.38   1.18   1.16   1.16 1.41 0.954 1.2 0.905
Water Absorption D570 % 1.5   2.3   1   3.7   2.6   0.9 0.22   0.15 0.3
Hardness D785   M80 M61 M60 M50 M100 M82 R123 R107 M52   R119 M80 D62 R118 R95
Underwriters Lab. Rating BUL94   94V2   94HB   94HB   94V2   94V0   Self Ext 94HB   94V2  
Electrical Properties
Dielectric Strength D149 V/MIL 600   2250 1300   400 600   2000     500   420 425/550
Dielectric Constant D150 1000 HZ 5.3   3.1 3.6 4   3.8 5 3.6 6   3.7   2.93  
Volume Resistivity D257 OHM/CM 1014 1013 4X1014 1012 1014   1016 1014 1015 1011   1014   2X1017  

Important: While the descriptions, applications, data, and information contained in the above specifications are presented in good faith and believed to be accurate, it is provided for guidance only.  Because many factors affect application and use, we recommend that you make tests to determine the suitability of a product of particular purpose prior to use.