Nuts

Part Number	Description / PDF	Quantity
18357.9 Conta-Clip	NPT2" LOCKNUT NPB	0
6102258 Altech Corporation	REDUCERPG48 TOPG42 HEX NICKELPLA	0
0443714HJN Richco, Inc. (Essentra Components)	HEX JAM NUT 7/16-14 THREAD .37	0
6102050 Altech Corporation	REDUCERPG16 TOPG9 HEX NICKELPLAT	0
6400410 Altech Corporation	ADAPTERPG29 TO NPT1 14" NICKEL-P	0
0650013WN Richco, Inc. (Essentra Components)	WING NUT 1/2-13 THREAD .90 HEIGH	0
1737050000 Weidmuller	LOCK NUT 2.756" BRASS M63	0
21019-2 TE Connectivity AMP Connectors	NUT,HEX,HEAVY	0
6604715 Altech Corporation	ADAPTER M16 TOPG11 NICKEL-PLATED	0
0410008HN Richco, Inc. (Essentra Components)	HEX NUT 1-8 THREAD .870 HEIGHT	1000
6604837 Altech Corporation	ADAPTERPG36 TO M50 NICKEL-PLATED	0
6200079 Altech Corporation	ENLARGERPG135 TOPG21 ROUND NICKE	0
6102239 Altech Corporation	REDUCERPG42 TOPG29 HEX NICKELPLA	0
A8220 American Electrical, Inc.	LOCK NUT NYLON M20	0
08M040070TN Richco, Inc. (Essentra Components)	THUMB NUT KNURLED M4 X .7 THREAD	876
6011163 Altech Corporation	M63 LOCKNUT RIBBED BN	0
6604809 Altech Corporation	ADAPTERPG9 TO M12 NICKEL-PLATED	0
2-1616338-4 TE Connectivity Aerospace Defense and Marine	50407370=NUT 3/8-24 9/16-HEX 2	0
6604719 Altech Corporation	ADAPTER M20 TOPG9 NICKEL-PLATED	0
7005306 Altech Corporation	REDUCERPG135 TOPG11POLYAMIDE LIG	0

Nuts

1. Overview

Nuts are threaded fasteners with internal threads designed to mate with bolts or screws to secure mechanical components. As critical elements in assembly systems, nuts provide removable joints that maintain structural integrity under various operational conditions. Their importance spans across industries requiring precision engineering, vibration resistance, and load-bearing capabilities.

2. Major Types and Functional Classification

Type	Functional Characteristics	Application Examples
Hex Nuts	Standard six-sided design with coarse/fine threads, economical and versatile	General machinery assembly
Lock Nuts	Integrated anti-loosening features (nylon insert, distorted thread)	Automotive powertrain systems
Flange Nuts	Integrated washer face reduces surface pressure	Sheet metal applications
Weld Nuts	Projection weld design for permanent metal joining	Steel structure fabrication
Cap Nuts	Protective enclosure for threaded ends	Exterior architectural components

3. Structure and Composition

Typical nut configurations feature a prismatic or cylindrical body with chamfered corners. Key structural elements include:

Hexagonal wrenching surfaces (90% of standard nuts)
Internal ISO metric or Unified thread profiles
Material compositions: Carbon steel (8.8-12.9 grade), Stainless Steel (A2/A4), Brass, Aluminum
Surface treatments: Zinc plating, Geomet coating, Dacromet

4. Key Technical Specifications

Parameter	Importance
Tensile Strength (800-1200 MPa)	Determines load capacity in clamping applications
Hardness (HRC 20-39)	Affects wear resistance and torque performance
Thread Class (6H, 4H)	Defines fit precision with mating bolts
Vibration Resistance	Critical for dynamic load applications
Corrosion Resistance	Measured via salt spray testing ( 72h)

5. Application Fields

Automotive: Engine assembly, chassis systems
Aerospace: Aircraft engine mounts, landing gear
Construction: Steel frame connections, bridge structures
Electronics: PCB mounting, enclosure assembly
Renewable Energy: Wind turbine tower connections

6. Leading Manufacturers and Products

Manufacturer	Representative Products
ITW Shakeproof	Nord-Lock wedge-locking washers and nuts
PEM	SF series flush weld nuts
Hilti	IN fastening systems for concrete applications
Yamawa	High-precision JIS standard nuts

7. Selection Recommendations

Key selection criteria:

Material compatibility with mating bolt (e.g., A2 stainless nut with A2 bolt)
Environmental factors: Temperature range (-50 C to +300 C), chemical exposure
Torque requirements: Proof load specifications
Case Study: Wind turbine tower connections require M64 10.9 grade nuts with 10 m zinc coating

Industry Trends Analysis

Current development directions include:

Advanced materials: Carbon fiber-reinforced polymer nuts for weight reduction
Smart fasteners: Integrated strain sensors for real-time load monitoring
Manufacturing innovation: Cold forming processes achieving G05 dimensional accuracy
Sustainability: Bio-based coatings replacing traditional zinc plating