DIN 985 Prevailing torque type hexagon thin nuts with non-metallic insert
DIN Standards are invented for a variety of components including industrial fasteners such as DIN 985 Prevailing torque type hexagon thin nuts with non-metallic inserts. DIN 985 Nuts are manufactured from Carbon Steel, Acid-Resistant stainless-steel Grade A2 or A4, Brass, Alloy Steel, Ordinary alloy steel, or many other materials. DIN 985 Hex Nuts are available in various sizes, shapes, and materials.
Following are the specifications of DIN 985 Nuts:
Characteristics:
- DIN 985 hex nut with permanent undersized non-metallic insert (nylon/polyamide).
- The threads and nylon form a tight, frictional fit.
- Restricting movement of the screw when it is subjected to vibration.
- DIN 985 nuts are considered one-way lock nuts.
- Complies with ISO 10511; CSN 021492; UNI 7474.
Advantages:
- DIN 985 hex nuts are designed for use in temperatures from -73°C to +120°C.
- It is reusable more times than a two-way reversible nut.
- DIN 985 Hex Nuts Can only be installed one-way top-up.
- These bolts are reliable and have a long service life.
- The nylon inserts limit its use at elevated temperatures or when exposed to certain chemicals.
Application:
- DIN 985-Class 8 metric nylon insert lock nuts are to be used with a screw of Class 8.8 or less.
- DIN 985 Nuts are used in various industries including Mechanical Engineering, Instrument making, household applications, equipment, and various industries.
- DIN 985 Nuts are used in conjunction with bolts, screws, and threaded studs to create connections.
Dimension specification of DIN 985 Nuts
| Thread d | M3 | M4 | M5 | M6 | M7 | M8 | M10 | M12 | |
|---|---|---|---|---|---|---|---|---|---|
| – | – | – | – | – | – | M8x1 | M10x1 | M12x1,5 | |
| – | – | – | – | – | – | – | M10x1,25 | M12x1,25 | |
| P | 0,5 | 0,7 | 0,8 | 1 | 1 | 1,25 | 1,5 | 1,75 | |
| da | min. | 3 | 4 | 5 | 6 | 7 | 8 | 10 | 12 |
| max. | 3,45 | 4,6 | 5,75 | 6,75 | 7,75 | 8,75 | 10,8 | 13 | |
| dw | min. | 4,6 | 5,9 | 6,9 | 8,9 | 9,6 | 11,6 | 15,6 | 17,4 |
| e | min. | 6,01 | 7,66 | 8,79 | 11,05 | 12,12 | 14,38 | 18,9 | 21,1 |
| h | nominal= max. | 4 | 5 | 5 | 6 | 7,5 | 8 | 10 | 12 |
| min. | 3,7 | 4,7 | 4,7 | 5,7 | 7,14 | 7,64 | 9,64 | 11,57 | |
| m | min. | 2,4 | 2,9 | 3,2 | 4 | 4,7 | 5,5 | 6,5 | 8 |
| m´ | min. | 1,65 | 2,2 | 2,75 | 3,3 | 3,85 | 4,4 | 5,5 | 6,6 |
| s | nominal= max. | 5,5 | 7 | 8 | 10 | 11 | 13 | 17 | 19 |
| min. | 5,32 | 6,78 | 7,78 | 9,78 | 10,73 | 12,73 | 16,73 | 18,67 |
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