Torx Pan Head Screws — GB/T 2672-2017 / ISO 14583

FULLERKREG Torx pan head screws (hexalobular socket pan head screws) are manufactured to GB/T 2672-2017 and the equivalent international standard ISO 14583:2011(MOD). Available in a full range of materials and surface treatments to suit every application — from corrosion-resistant stainless steel for marine environments to high-strength alloy steel for automotive and industrial assemblies. All products feature the Torx (T-drive) hexalobular recess for superior torque transmission and reduced cam-out risk.

• Drive Type: Torx / Hexalobular (T-drive), per ISO 10664
• Head Type: Pan Head (low profile)
• Size Range: M2 – M10
• Standards: GB/T 2672-2017 / ISO 14583:2011(MOD)
• Thread: Metric coarse, tolerance class 6g
• Available Grades: Class 4.8 / A2-70 / A4-70 / Class 10.9

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Product Series

Torx Pan Head Screws — Stainless Steel A2 (SUS304)
Material: A2 (SUS304) · Surface: Passivated & Whitened · Grade: A2-70 · Sizes: M2–M10

Torx Pan Head Screws — Marine Stainless Steel A4 (SUS316)
Material: A4 (SUS316) · Surface: Passivated & Whitened · Grade: A4-70 · Sizes: M2–M10

Torx Pan Head Screws — Alloy Steel Class 10.9 — Black Oxide
Material: Alloy Steel 10B21 · Surface: Black Oxide · Grade: Class 10.9 · Sizes: M2–M10

Torx Pan Head Screws — Alloy Steel Class 10.9 — Zinc Cr3
Material: Alloy Steel 10B21 · Surface: Zinc Plated Cr3 (RoHS) · Grade: Class 10.9 · Sizes: M2–M10

Torx Pan Head Screws — Steel Class 4.8 — Bright Zinc Plated
Material: Low Carbon Steel C1008 · Surface: Bright Zinc Cr3 (RoHS) · Grade: Class 4.8 · Sizes: M2–M10

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Selection Guide by Material & Grade

Series	Material	Surface	Grade	Tensile Strength	Best For
A2 Stainless	SUS304	Passivated	A2-70	700 MPa min.	General corrosion resistance, electronics, bicycles
A4 Marine Stainless	SUS316	Passivated	A4-70	700 MPa min.	Marine, coastal, chemical, food-grade environments
Alloy Steel 10.9 Black	10B21	Black Oxide	Class 10.9	1040 MPa min.	Automotive, power tools, industrial machinery
Alloy Steel 10.9 Zinc Cr3	10B21	Zinc Cr3 (RoHS)	Class 10.9	1040 MPa min.	Automotive OEM, electronics, RoHS-required assemblies
Steel 4.8 Bright Zinc	C1008	Bright Zinc Cr3 (RoHS)	Class 4.8	420 MPa min.	Consumer goods, furniture, light-duty general assembly

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Standard Notes

• GB/T 2672-2017 is the Chinese national standard for hexalobular socket pan head screws, equivalent to and modified from ISO 14583:2011.
• Covers thread sizes M2 through M10, nominal lengths 3 mm to 60 mm (size-dependent).
• Torx drive sizes follow ISO 10664: T6 (M2) through T50 (M10).
• Thread tolerance: 6g per ISO 965-1.
• Mechanical properties per ISO 898-1 (steel grades) and ISO 3506-1 (stainless steel grades).

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Product Gallery

FULLERKREG Torx Pan Head Screws — GB/T 2672-2017 / ISO 14583 Series

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Why FULLERKREG

• 🏭 Direct Manufacturer — Factory-direct pricing with no middlemen, ensuring competitive wholesale rates
• 📐 Standard Compliance — Strictly manufactured to GB/T 2672-2017 & ISO 14583, with full dimensional inspection
• 🔬 Full Material Range — One source for all grades: carbon steel, alloy steel, A2 and A4 stainless steel
• ♻️ RoHS & REACH Compliant Options — Cr3 trivalent zinc plating available across applicable grades
• 📦 Bulk & Custom Orders — Flexible MOQ; custom packaging, labeling, and length combinations available
• 🌍 Global Export — Experienced in international shipping with full export documentation support
• ⚡ Fast Quotation — RFQ response within 24 hours for standard and non-standard specifications