Cheese Head Screws (GB65-2016 / DIN 84) — Stainless Steel A2 (SUS304)

FULLERKREG cheese head screws (slotted cylindrical head machine screws) are manufactured to GB65-2016 and DIN 84 standards. Produced in Stainless Steel A2 (SUS304), property class A2-50, with a passivated & bright-finished surface. Ideal for precision assemblies, instrumentation, electronics enclosures, and general mechanical fastening where corrosion resistance and a low-profile cylindrical head are required.

Product Specifications

Standard	GB65-2016 / DIN 84
Head Type	Cheese Head (Slotted Cylindrical Head)
Drive Type	Slotted
Material	Stainless Steel A2 (SUS304)
Property Class	A2-50
Surface Treatment	Passivated & Bright (Whitened)
Size Range	M1.6 – M10
Length Range	2 mm – 100 mm
Thread	Metric Coarse Thread (ISO 68-1)
Availability	Stock & Custom Lengths — Wholesale / Bulk Supply

Dimensional Data (GB65-2016 / DIN 84)

All dimensions in mm. Tolerances per GB65-2016 / DIN 84.

Thread d	Pitch p (mm)	Head Dia. dk (max)	Head Height k (max)	Slot Width n (ref)	Slot Depth t (min)	Length Range l (mm)	Unit Weight (g / pc, ref)
M1.6	0.35	3.2	1.6	0.4	0.45	2 – 16	~0.07
M2	0.40	4.0	2.0	0.5	0.60	3 – 20	~0.13
M2.5	0.45	5.0	2.5	0.6	0.70	3 – 25	~0.25
M3	0.50	6.0	3.0	0.8	0.85	4 – 30	~0.44
M4	0.70	8.0	4.0	1.0	1.10	5 – 40	~1.05
M5	0.80	10.0	5.0	1.2	1.30	6 – 50	~2.10
M6	1.00	12.0	6.0	1.6	1.60	8 – 60	~3.80
M8	1.25	16.0	8.0	2.0	2.00	10 – 80	~9.00
M10	1.50	20.0	10.0	2.5	2.50	12 – 100	~17.50

* Unit weights are reference values for nominal length screws. Actual weight varies by length. Contact FULLERKREG for weight-by-length data sheets.

Standard Length Series (mm)

Thread	Available Lengths (mm)
M1.6	2, 3, 4, 5, 6, 8, 10, 12, 16
M2	3, 4, 5, 6, 8, 10, 12, 16, 20
M2.5	3, 4, 5, 6, 8, 10, 12, 16, 20, 25
M3	4, 5, 6, 8, 10, 12, 16, 20, 25, 30
M4	5, 6, 8, 10, 12, 16, 20, 25, 30, 35, 40
M5	6, 8, 10, 12, 16, 20, 25, 30, 35, 40, 45, 50
M6	8, 10, 12, 16, 20, 25, 30, 35, 40, 45, 50, 55, 60
M8	10, 12, 16, 20, 25, 30, 35, 40, 45, 50, 55, 60, 65, 70, 80
M10	12, 16, 20, 25, 30, 35, 40, 45, 50, 55, 60, 65, 70, 80, 90, 100

Selection Guide

Application	Recommended Size	Notes
Electronics & PCB assemblies	M1.6 – M3	Low-profile head, minimal footprint
Instrument panels & enclosures	M3 – M5	Clean appearance, corrosion resistant
Food processing equipment	M4 – M8	A2 SS meets hygiene requirements
Marine & outdoor fixtures	M4 – M10	Excellent salt-spray resistance
General mechanical assembly	M3 – M10	Versatile, widely stocked

Standard Notes

GB65-2016 is the Chinese national standard for slotted cheese head screws, technically equivalent to DIN 84 (superseded by ISO 1207, but widely referenced in industry). Key points:

• Thread tolerance: 6g (external thread)
• Head diameter tolerance: h13 (dk)
• Slot dimensions per GB/T 5279 / DIN 84 Table
• Mechanical properties per ISO 3506-1 (A2-50)
• Corrosion resistance: ≥ 200 hours salt spray (neutral, per ISO 9227)
• Passivation treatment removes free iron and enhances oxide layer for maximum corrosion resistance

Material & Mechanical Properties

Property	Value
Material Grade	A2 (SUS304 / 1.4301)
Property Class	A2-50
Tensile Strength (Rm)	≥ 500 MPa
0.2% Proof Stress (Rp0.2)	≥ 210 MPa
Elongation (A)	≥ 0.6 × d
Hardness	≤ 250 HV
Magnetic	Slightly magnetic (work-hardened)
Operating Temperature	-196°C to +300°C

Product Gallery

Product images — to be added manually.

Why Choose FULLERKREG?

🏭 Direct Manufacturer — Factory-direct pricing with full traceability from raw material to finished fastener.
📐 Standard Compliance — Every batch produced and inspected to GB65-2016 / DIN 84 dimensional and mechanical requirements.
🔬 Material Certified — Mill certificates (MTC) and RoHS/REACH compliance documentation available on request.
📦 Bulk & Custom Orders — MOQ flexible for wholesale; custom lengths, packaging, and labeling available.
🚢 Global Shipping — Experienced in export documentation, HS code classification, and international logistics.
💬 Technical Support — Engineering team available for application consultation and torque/clamping force data.