**Prevailing Torque All-Metal Lock Hex Nuts** **Model No.:** 7/16 inch **Metric Size:** M6 up to M24 **Inch Size:** 1/4 up to 1 Inch **Quality:** Grade 8, 10 **Coating:** Plain, Black, ZP **Trademark:** TS **Transport Package:** Small Box, Carton, Pallet **Specification:** DIN, ANSI, JIS, GB **Origin:** China **HS Code:** 731816 --- **Product Description:** Prevailing Torque All-Metal Lock Hex Nuts are designed for applications where vibration and loosening are a concern. These nuts use an internal metal locking mechanism that creates friction on the bolt threads when tightened, preventing them from backing off over time. They are ideal for industrial and mechanical systems where reliability is key. Available in both **DIN980v** and **ANSI/ASME IFI100-107** standards, these nuts come in a wide range of sizes. For metric options, they are available from **M6 to M24**, while inch sizes range from **1/4 to 1 inch**. The nuts are made from **carbon steel grades #35 or #45**, with **Class 8, 10, Grade B, C, F** specifications. Surface treatments include **zinc plating (ZP, YZP), black oxide, wax, and cadmium plating** for improved corrosion resistance. They are commonly used in automotive, construction, and heavy machinery industries. However, it's important to note that all-metal lock nuts are typically **one-time use only** because the locking mechanism can damage the thread coating of both the nut and the bolt, increasing the risk of galling and corrosion. For more information on **prevailing torque hex nuts, hex flange nuts, and other fastener standards**, visit our website at [www.hexnuts.cn](http://www.hexnuts.cn). We also offer custom solutions for non-standard requirements. **Types of Prevailing Torque Nuts:** 1. **All-Metal Lock Nuts**: Use thread distortion to create friction. 2. **Metal Insert/Nylon Insert Lock Nuts**: Use a nylon or metal insert to provide locking force without damaging the threads. **Common Standards:** - DIN980v - DIN6924 / ISO 7040 - DIN6925 / ISO 7042 - DIN6926 / ISO 7043 - JIS B1199 - ISO 7042, 7719, 7720, 10513 - IFI 100/107 Grade C - Top Lock Flange Nut IFI 100/107 Grade G - DIN6927, JIS B1199-4-2001, EN1667, ISO 12126 **Surface Treatments:** - Zinc Plated - Chromate Coated - Phosphate Coated - Lubricated - Cadmium Plated - Wax Coated **DIN980v Standard Dimensions:** | d₁ | s | e min | d₂ | h max | |------|----|----------|--------|-------| | M4 | 7 | 7.66 | | 4.2 | | M5 | 8 | 8.79 | | 5.1 | | M6 | 10 | 11.05 | | 6 | | M8 | 13 | 14.38 | | 8 | | M10 | 17 | 18.9 | | 10 | | M12 | 19 | 21.1 | | 12 | | M14 | 22 | 24.49 | | 14 | | M16 | 24 | 26.75 | | 16 | | M18 | 27 | 29.56 | 23 | 18 | | M20 | 30 | 32.95 | 27.5 | 20 | | M22 | 32 | 35.03 | 29.5 | 22 | | M24 | 36 | 39.55 | 31 | 24 | | M27 | 41 | 45.02 | | | | M30 | 46 | 50.85 | | | | M33 | 50 | 55.37 | | | | M36 | 55 | 60.79 | | | These nuts are also available in **serrated flange** and **K-Lock** types, which require tightening against a bearing surface for optimal performance. If you need assistance selecting the right type or size, feel free to contact us directly.

Multi-Function Packaging Machines

Tiancheng paper cup packing machine can online working with 1-4 sets of paper cup forming machines. The packing machine can according to different forming machines to classify the packed cups into different cartons.
The structure of the paper cup packing machine:
1)cup collection station which is for counting the cups automatically. From your forming machine to our collection station only by the plastic pipe.
2)Paper cup bagger for packing the counted cups with sleeve.
3)Paper cup cartoning machine for insert the sleeves of cups into the carton automatically
4)Carton tape sealing machine for sealing the carton by tape automatically

Multi-Function Packaging Machines,Automatic Paper Cup Packing Machine,Paper Cup Counting

Ruian Tiancheng Packing Machinery Co., Ltd. , https://www.tinchinmachine.com