ISO 10509 ST9.5×25 Flange Head Tapping Screw4 combinations of material, property class and finish supplied in this size.

Standard: ISO 10509 · 2012
Thread: ST9.5 · pitch 2.1 mm
Length under head: 25 mm · 24.2–25.8 mm to ISO 10509 product grade A
Drive: 13 mm spanner · e 14.16 mm
Head height: 10.7 mm
Weight: 24.25 kg per 1 000 pieces · Theoretical, from nominal geometry — confirm before ordering41.2 pieces per kg
Also named: GB/T 16824.2

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Order ST9.5×25

Set a quantity on as many rows as you need. Not listed? We make to your drawing — send it with the enquiry.

**Stainless Steel** ST9.5 is beyond the diameter range of ISO 3506-4, which is written up to ST8. ISO 3506-4 states that fasteners outside that range may still carry its property classes, provided they meet all applicable chemical, mechanical and physical requirements. If a property class is specified for ST9.5, its order-specific evidence must demonstrate those requirements. Note: the numerical tables in ISO 3506-4 do not extend to this size, so table values are not extrapolated.
Material	Class	Finish	Quantity	Net weight
Carbon Steel	—	Zinc Plated	Quantity of ST9.5×25 · Zinc Platedpcs	—
Carbon Steel	—	Dacromet	Quantity of ST9.5×25 · Dacrometpcs	—
Stainless Steel	—	Passivated	Quantity of ST9.5×25 · Passivatedpcs	—
Stainless Steel	—	Plain	Quantity of ST9.5×25 · Plainpcs	—

Plating adds thickness — state the finish on the order.

Standard, size, material, finish, quantity and destination are enough to begin.