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Hex Flange Cap Nut GB/T 802.3 - Carbon Steel Electro-Galvanized Fastener

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Hex Flange Cap Nut GB/T 802.3 - Carbon Steel Electro-Galvanized Fastener

Brand Name:	YB
Model Number:	GB/T 802.3
MOQ:	10000
Price:	Negontiation
Packaging Details:	5000-10000/box
Payment Terms:	T/T

Detail Information

Product Description

Detail Information

Place of Origin:

ZheJiang,China

Certification:

IATF16949

Logo Custom:

Port:

NINGBO

Thread Type:

Coarse

Pitch:

Packaging Type:

Head Style:

Hexagonal

Drive Style:

External Hex

Trademark:

YONGBIAO

Supply Ability:

500Tons/month

Highlight:

Hex flange cap nut carbon steel

GB/T 802.3 electro-galvanized fastener

Machine bolt with flange cap

Product Description

Hex Flange Cap Nut GB/T 802.3 - Carbon Steel Electro-Galvanized Fastener

Product Overview

Standard: GB/T 802.3

The hex flange cap nut (also known as hexagonal flange cap nut) is a high-performance fastener integrating the functions of a hex nut, a flange washer, and a protective cap. Designed for industrial assembly and mechanical fastening, it features a hexagonal head for easy torque application, an integrated flange face (with serrations in most cases), and a closed cap-style top—combining reliability, anti-loosening performance, and corrosion protection in one component.

Core Structural & Functional Features

Hexagonal Head Design: The standard hexagonal shape enables compatibility with common tools (wrenches, sockets), ensuring efficient installation and disassembly even in confined spaces.
Integrated Flange Face: The built-in flange (a circular washer-like structure) eliminates the need for additional washers, increasing the contact area with the workpiece. Serrated flanges enhance anti-loosening performance by preventing rotation under vibration, making it ideal for dynamic load scenarios.
Closed Cap Style: The closed top seals the internal thread, protecting it from dust, moisture, debris, and corrosion—extending the fastener's service life and maintaining connection integrity in harsh environments.

Application Scenarios

Widely used in machinery manufacturing, automotive industry, electronic equipment, construction machinery, furniture assembly, and marine hardware. It is particularly suitable for scenarios requiring stable fastening, corrosion resistance, and thread protection—such as outdoor equipment, automotive components, and precision instruments.

Technical Specifications

d	M5	M6	M8	M10	M12	M16	M20	M24
P (coarse thread)	0.8	1	1.25	1.5	1.75	2	2.5	3
P (fine thread)	/	/	1	1	1.5	1.5	2	2
P (fine thread)	/	/	/	1.25	1.25	/	1.5	/
dk MAX	7.5	9.5	12.5	15	17	23	28	34
dc MAX	11.8	14.2	17.9	21.8	26	34.5	42.8	46
e MIN	8.79	11.05	14.38	17.77	20.03	26.75	32.95	39.55
h MAX	9	11	14	18	22	30	32	36
h MIN	8.64	10.57	13.57	17.57	21.48	29.48	31	35
m MAX	5	6	8	10	12	16	20	24
m MIN	4.7	5.7	7.64	9.64	11.57	15.3	18.7	22.7
SR ≈	3.75	4.75	6.25	7.5	8.5	11.5	14	17
s MAX	8	10	13	16	18	24	30	36
s MIN	7.78	9.78	12.73	15.73	17.73	23.67	29.16	35
t ≈	0.5	0.8	0.8	0.8	1	1	1.2	1.2

Packaging Options

Carton Packaging

Bolts are packed in neutral packaging boxes, with standard quantities arranged in small cartons. The exact number of units per carton will be confirmed with the customer to align with their specific requirements. Customized packaging configurations are available upon request.

Outer Carton Box Packaging

The small cartons are then consolidated into larger master cartons for secure transportation and storage. The quantity per master carton can be customized based on client specifications or aligned with standard logistical requirements.

Pallet Packaging

The palletized units are securely wrapped with waterproof film and reinforced with packaging straps. Customer-specific shipping marks or labels are affixed to each pallet, ensuring clear identification and compliance with logistics requirements. This final packaging stage guarantees weather-resistant protection and stability during transportation.

Tags:

Products Details

Home > Products >

Machine Bolt

Hex Flange Cap Nut GB/T 802.3 - Carbon Steel Electro-Galvanized Fastener

All Category

Hex Flange Cap Nut GB/T 802.3 - Carbon Steel Electro-Galvanized Fastener

Brand Name:	YB
Model Number:	GB/T 802.3
MOQ:	10000
Price:	Negontiation
Packaging Details:	5000-10000/box
Payment Terms:	T/T

Detail Information

Product Description

Detail Information

Place of Origin:

ZheJiang,China

Brand Name:

Certification:

IATF16949

Model Number:

GB/T 802.3

Logo Custom:

Port:

NINGBO

Thread Type:

Coarse

Pitch:

1.5

Packaging Type:

Box

Head Style:

Hexagonal

Drive Style:

External Hex

Trademark:

YONGBIAO

Minimum Order Quantity:

10000

Price:

Negontiation

Packaging Details:

5000-10000/box

Delivery Time:

7-25Days

Payment Terms:

T/T

Supply Ability:

500Tons/month

Highlight:

Hex flange cap nut carbon steel

GB/T 802.3 electro-galvanized fastener

Machine bolt with flange cap

Product Description

Hex Flange Cap Nut GB/T 802.3 - Carbon Steel Electro-Galvanized Fastener

Product Overview

Standard: GB/T 802.3

Core Structural & Functional Features

Hexagonal Head Design: The standard hexagonal shape enables compatibility with common tools (wrenches, sockets), ensuring efficient installation and disassembly even in confined spaces.
Integrated Flange Face: The built-in flange (a circular washer-like structure) eliminates the need for additional washers, increasing the contact area with the workpiece. Serrated flanges enhance anti-loosening performance by preventing rotation under vibration, making it ideal for dynamic load scenarios.
Closed Cap Style: The closed top seals the internal thread, protecting it from dust, moisture, debris, and corrosion—extending the fastener's service life and maintaining connection integrity in harsh environments.

Application Scenarios

Technical Specifications

d	M5	M6	M8	M10	M12	M16	M20	M24
P (coarse thread)	0.8	1	1.25	1.5	1.75	2	2.5	3
P (fine thread)	/	/	1	1	1.5	1.5	2	2
P (fine thread)	/	/	/	1.25	1.25	/	1.5	/
dk MAX	7.5	9.5	12.5	15	17	23	28	34
dc MAX	11.8	14.2	17.9	21.8	26	34.5	42.8	46
e MIN	8.79	11.05	14.38	17.77	20.03	26.75	32.95	39.55
h MAX	9	11	14	18	22	30	32	36
h MIN	8.64	10.57	13.57	17.57	21.48	29.48	31	35
m MAX	5	6	8	10	12	16	20	24
m MIN	4.7	5.7	7.64	9.64	11.57	15.3	18.7	22.7
SR ≈	3.75	4.75	6.25	7.5	8.5	11.5	14	17
s MAX	8	10	13	16	18	24	30	36
s MIN	7.78	9.78	12.73	15.73	17.73	23.67	29.16	35
t ≈	0.5	0.8	0.8	0.8	1	1	1.2	1.2

Packaging Options

Carton Packaging

Outer Carton Box Packaging

Pallet Packaging

Tags:

Pan Head Screw

Bugle Head Screw

Self Tapping Screw

Self Drilling Screw

Stainless Steel Screw

Screw Kit

Concrete Anchor Bolt

Hex Head Bolt

Allen Head Bolt

Machine Bolt

Expansion Anchor Bolt

Hex Head Nut

Spring Lock Washer

Waterproof Cable Gland

CNC Machining Parts

Plastic Bolt

Pan Head Screw

Bugle Head Screw

Self Tapping Screw

Self Drilling Screw

Stainless Steel Screw

Screw Kit

Concrete Anchor Bolt

Hex Head Bolt

Allen Head Bolt

Machine Bolt

Expansion Anchor Bolt

Hex Head Nut

Spring Lock Washer

Waterproof Cable Gland

CNC Machining Parts

Plastic Bolt

products details

Pan Head Screw

Bugle Head Screw

Self Tapping Screw

Self Drilling Screw

Stainless Steel Screw

Screw Kit

Concrete Anchor Bolt

Hex Head Bolt

Allen Head Bolt

Machine Bolt

Expansion Anchor Bolt

Hex Head Nut

Spring Lock Washer

Waterproof Cable Gland

CNC Machining Parts

Plastic Bolt

Hex Flange Cap Nut GB/T 802.3 - Carbon Steel Electro-Galvanized Fastener

Hex flange cap nut carbon steel

GB/T 802.3 electro-galvanized fastener

Machine bolt with flange cap

Products Details

Pan Head Screw

Bugle Head Screw

Self Tapping Screw

Self Drilling Screw

Stainless Steel Screw

Screw Kit

Concrete Anchor Bolt

Hex Head Bolt

Allen Head Bolt

Machine Bolt

Expansion Anchor Bolt

Hex Head Nut

Spring Lock Washer

Waterproof Cable Gland

CNC Machining Parts

Plastic Bolt

Hex Flange Cap Nut GB/T 802.3 - Carbon Steel Electro-Galvanized Fastener

Hex flange cap nut carbon steel

GB/T 802.3 electro-galvanized fastener

Machine bolt with flange cap