Nuts

Part Number	Description / PDF	Quantity
0537524CN Richco, Inc. (Essentra Components)	CAP NUT 3/8-24 THREAD .620 HEIGH	995
0625020DLWN Richco, Inc. (Essentra Components)	DECO WING NUT 1/4-20 THREAD 17/3	0
0525020LCN Richco, Inc. (Essentra Components)	CAP NUT, NATURAL, NYLON 6/6, 1/4	4767
7235-3 Keystone Electronics Corp.	HEX NUT 440 STAINLESS STEEL	979850500
4716 Keystone Electronics Corp.	HEX NUT 1/2" STEEL 5/16-24	1500
1417665 Phoenix Contact	LOCK NUT 60.0MM POLYAMIDE M50	0
M3565-B-12 RAF	13MM RD X 13MM X M6	293
04M100150WFHN Richco, Inc. (Essentra Components)	HEX FLANGE NUT, M10 X 1.5 THREAD	969
04M120175HN Richco, Inc. (Essentra Components)	HEX NUT, NATURAL, NYLON, M12 X 1	4890
0443720HJN Richco, Inc. (Essentra Components)	HEX JAM NUT 7/16-20 THREAD .250	607
06M080125WN Richco, Inc. (Essentra Components)	WING NUT M8 X 1.25 THREAD 18.3MM	950
0525020LCNB Richco, Inc. (Essentra Components)	LOCKING CAP NUT 1/4-20 THREAD .4	1000
7218-SS RAF	3/4HD X 15/32 X 3/8-16 THD	285
0501024CNB Richco, Inc. (Essentra Components)	CAP NUT 10-24 THREAD .400 HEIGHT	1000
0475027HJN Richco, Inc. (Essentra Components)	HEX JAM NUT 3/4-27 THREAD .125 H	998
CAGNUTM6-100 Hammond Manufacturing	CAGE NUT M6 SQUARE 100PC	19
04M120175WFHN Richco, Inc. (Essentra Components)	HEX FLANGE NUT, M12 X 1.75 THREA	2000
04M160150WFHN Richco, Inc. (Essentra Components)	HEX FLANGE NUT, M16 X 1.5 THREAD	1000
7214-SS RAF	1/2HD X 11/32 X 10-24 THD	300
0437516HN Richco, Inc. (Essentra Components)	HEX NUT, NATURAL, NYLON, 3/8-16	49818

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