Nuts

Part Number	Description / PDF	Quantity
0800832TNA Richco, Inc. (Essentra Components)	THUMB NUT KNURLED 8-32 THREAD .3	1088
1404983 Phoenix Contact	JAM NUT 0.748" STEEL M16	0
1416012 Phoenix Contact	HEX NUT 41.0MM BRASS NPT-1/2"	50
9605 Keystone Electronics Corp.	HEX NUT 1/4" NYLON 4-40	869365700
1504071 Phoenix Contact	HEX NUT BRASS M8	18474143
BGN1032-C Panduit Corporation	LOCK NUT 0.380" 10-32	4122600
0400632HNS Richco, Inc. (Essentra Components)	HEX NUT 6-32 THREAD .146 HEIGHT	6131
1417662 Phoenix Contact	LOCK NUT 41.0MM POLYAMIDE M32	0
0400832HNS Richco, Inc. (Essentra Components)	HEX NUT 8-32 THREAD .170 HEIGHT	349
CGLN-M32-BK Richco, Inc. (Essentra Components)	LOCK NUT 1.614" NYLON M32	339
04M050080HN Richco, Inc. (Essentra Components)	HEX NUT, NATURAL, NYLON, M5 X .8	10664
10-24 AJ 6 APM Hexseal	HEX SEAL NUT 3/8" STEEL 10-24	0
0801032TNAB Richco, Inc. (Essentra Components)	THUMB NUT KNURLED 10-32 THREAD .	1830
7221-SS RAF	3/8HEX X 9/32 X 6-32 THD	160
04M080125WFHN Richco, Inc. (Essentra Components)	HEX FLANGE NUT, M8 X 1.25 THREAD	1959
0400832HN Richco, Inc. (Essentra Components)	HEX NUT 8-32 THREAD .130 HEIGHT	8540
04M035060HN Richco, Inc. (Essentra Components)	HEX NUT, NATURAL, NYLON, M3.5 TH	2870
7216-B RAF	9/16HD X 3/8 X 1/4-20 THD	413
709940300 Würth Elektronik Midcom	PLASTIC HEXAGON NUT M3	14731
0600832DECOWN Richco, Inc. (Essentra Components)	DECO WING NUT 8-32 THREAD 5/16 H	975

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