Nuts

Part Number	Description / PDF	Quantity
6000363 Altech Corporation	PG36 LOCKNUT BN	50
18030-1 TE Connectivity AMP Connectors	NUT,HEX (M3)	0
7008561 Altech Corporation	REDUCER M63 TO M32POLYAMIDE LIGH	0
21018-6 TE Connectivity AMP Connectors	NUT,HEX,MACH SCREW	0
6-1616338-5 TE Connectivity Aerospace Defense and Marine	50408044=NUT	0
SBNUT44-C Panduit Corporation	7/16-14 UNC HEX NUT SILICONE BRO	0
6102420 Altech Corporation	REDUCER M40 TO M32 HEX NICKELPLA	0
6102414 Altech Corporation	REDUCER M32 TO M16 HEX NICKELPLA	0
0400640HN Richco, Inc. (Essentra Components)	HEX NUT 6-40 THREAD .120 HEIGHT	900
6604721 Altech Corporation	ADAPTER M20 TOPG135 NICKEL-PLATE	0
9-1616337-0 TE Connectivity Aerospace Defense and Marine	50407074=NUT 1/4-28 3/8HEX 3/1	0
0801024TNA Richco, Inc. (Essentra Components)	THUMB NUT KNURLED 10-24 THREAD .	1400
6400414 Altech Corporation	ADAPTERPG48 TO NPT1 12" NICKEL-P	0
6402219 Altech Corporation	ADAPTER NPT 1" TO M25 NICKEL-PLA	0
6102410 Altech Corporation	REDUCER M25 TO M20 HEX NICKELPLA	40
6402091 Altech Corporation	ADAPTER NPT 1" TOPG29 NICKEL-PLA	0
6102413 Altech Corporation	REDUCER M32 TO M20 HEX NICKELPLA	0
6102429 Altech Corporation	REDUCER M63 TO M40 HEX NICKELPLA	0
6604709 Altech Corporation	ADAPTER M16 TOPG135 NICKEL-PLATE	0
0412511PJN Richco, Inc. (Essentra Components)	HEX JAM NUT WASHER FACE 1 1/4-11	1000

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