Aerotight®
"Vibration Resistant Fasteners for the New Millenium"

Key Advantages:
Aerotight® is an all metal Stiff Nut - No Vulnerable inserts to be affected by heat or oil.






Aerotight® can be re-used many times - Self locking function will still remain effective having been used a number of times.

Aerotight® will stay in position whether it is tightened down or not, provided the locking element is engaged - Does not have to achieve recommended torque to be effective

Steel and Austenic Stainles steel Aerotight® can be used up to a temperature of 300oC

Aerotight® can be supplied in plated finishes if required

Customised specials - Thin Aerotight® or other specified thicknesses may be supplied in suitable volumes or could encompass different specifications of material.

No additional parts are required for Aerotight® to function, and therefore no special tools are needed for the application.

Thread Size Nom. Pitch mm A/F Dia. Max mm N Dia. Max mm H Max mm F Min. mm
M 2.5 0.45 5.0 4.75 2.97 1.49
M 3 0.5 5.5 5.25 3.52 1.89
M 3.5 0.65 7.0 6.65 4.79 2.69
M 4 0.7 7.0 6.65 4.79 2.69
M 5 0.8 8.0 7.65 6.02 3.49
M 6 1.0 10.0 9.58 7.95 4.63
M 8 1.25 13.0 12.53 10.00 6.12
M 10 1.5 17.0 16.53 12.03 7.62
M 12 1.75 19.0 18.47 14.48 9.62
M 16 2.0 24.0 23.47 18.75 12.62
M 20 2.5 30.0 29.47 22.35 15.62


ISO Metric Threads to BS3643 class 6H

Note: ISO Metric Aerotight® Nuts are normally available in one thickness
UNC/UNF Threads to BS 1580 Class 2B
Size A/F Max Dia. N Max H Max Ordinary Thin F Min Ordinary Thin
No. 4 0.250 0.177 0.172 0.140 0.080 0.053
No. 6 0.313 0.238 0.203 0.167 0.100 0.064
No. 10 0.375 0.332 0.266 0.222 0.142 0.098
1/4 0.438 0.425 0.312 0.245 0.175 0.108
5/16 0.500 0.488 0.408 0.299 0.250 0.141
3/8 0.563 0.550 0.459 0.355 0.287 0.183
7/16 0.688 0.675 0.539 0.414 0.350 0.225
1/2 0.75 0.738 0.621 0.475 0.412 0.266


BA Threads to BS 93
Size A/F Max Dia. N Max H Max Ordinary Thin F Min Ordinary Thin
6 0.193 0.183 0.157 0.125 0.080 0.053
4 0.248 0.238 0.203 0.162 0.110 0.069
2 0.324 0.314 0.256 0.212 0.142 0.098
OBA 0.413 0.403 0.328 0.272 0.188 0.132


BSW/BSF Threads to BS 84 Normal Class
Size A/F Max Dia. N Max H Max Ordinary Thin F Min Ordinary Thin
3/16 0.324 0.314 0.256 0.212 0.142 0.098
1/4 0.445 0.433 0.312 0.245 0.175 0.108
5/16 0.525 0.513 0.383 0.299 0.225 0.141
3/8 0.600 0.588 0.459 0.355 0.287 0.183
1/2 0.820 0.808 0.621 0.475 0.412 0.266


Material Specification






PLEASE NOTE
All genuine 316 (A4) Aerotight® are marked with a unique identification on one flat of the hexagon.
(as shown)
Stainless Steel 303 and 316 (A4)

Steel 230 M07 Non-Leaded BS970

Brass BS 2874 CZ112



316 (A4) Stainless Steel
316 (A4) Stainless Steel has been developed for use in highly corrosive environments.

316 (A4) Stainless Aerotight® can safely be used for outdoor applications in coastal and industrial areas where atmospheric corrosion is severe.

316 (A4) Stainless Aerotight® is suitable for use in the chemical, food and horticultural industries. For paper processing, film processing and textile finishing machinery















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Recommended Practices
When assembled on the screw, two full threads should protrude through the Aerotight® Nut

Aerotight® Nuts should not be used on damaged or interrupted threads.

Vibration Test Comparison
Aerotight® Nut (A4 Stainless Steel) & Standard Nut (Grade 8).
















Nut tested using Standard Grade 8.8 Bolts - Un-lubricated. Accurancy of result +/- 10%.
(Test carried out on a Junker Vibration Test Machine with kind permission of Rover Group
UK and European Distributors