M8 x 40mm Pozi Pan Head Screws (DIN 7985Z) - Bright Zinc Plated Mild Steel Description
The M8 x 40mm Pozi Pan Head Screws (DIN 7985Z) - Bright Zinc Plated Mild Steel has the following features:
- DIN 7985Z Manufacturing Standard
- 40mm Length (L)
- Mild Steel Material
- Mild Steel Material Specification
- PZ4 Pozi Drive Size
- Bright Zinc Plated Finish
- 1.25mm Thread Pitch
- 6.15mm Head Height (H)
- Metric Metric or Imperial?
- M8 (8mm) Thread Size
- 16mm Head Diameter (D)
- +0/-0.43mm Head Diameter (D) Tolerance
- +0/-0.45mm Head Height (H) Tolerance
Discover more about the Pozi Pan Head Screws range.
Pozi pan head screws are machine-threaded fasteners characterised by a rounded, low-profile pan head and a Pozi drive. The Pozi drive features a dual cross-shaped recess that provides better torque transfer to minimise the risk of cam-out during installation. The low-profile, pan-shaped head ensures easy installation without damaging the material being fastened, making it suitable for applications where a slimline and neat finish is desired.
These Pozi pan head machine screws are commonly used in engineering, manufacturing and assembly tasks, particularly where secure fastening and easy installation are required, such as in assembling electrical enclosures or securing panels to framework.
How Pan Head Pozi Screws Work
Pan head Pozi drive screws operate using a cross-shaped Pozi drive that allows for efficient engagement with compatible screwdrivers. The pan head distributes load evenly across the surface, reducing the risk of surface damage or pull-through. Their machine threading ensures compatibility with tapped holes or pre-threaded inserts in metal, plastic or composite components.
Materials Pozi Pan Head Screws Are Made From
At Accu, our range of Pozi drive pan head screws is manufactured from various solid engineering grade materials such as:
- Stainless Steel (A2): Offers corrosion resistance and durability, suitable for general-purpose use.
- Stainless Steel (A4): Provides enhanced resistance to acids and chlorides, ideal for marine or chemically exposed environments.
- Nylon (Polyamide): Lightweight and non-conductive, suited for electrical or non-metallic applications.
- Mild Steel: Cost-effective option with good machinability for indoor use.
- Carbon Steel: High strength and hardness, ideal for applications requiring greater load-bearing capacity.
Sizes and Types of Pozi Pan Head Screws Available
Accu supplies Pozi pan head screws in metric sizes ranging from M1.6 to M8, with lengths from 2mm up to 100mm. Various additional finishes are available to suit specific environmental and performance requirements, such as:
- Bright Zinc Plated: Enhances corrosion resistance and appearance.
- Chemical Black (AccuBlack): Provides a non-reflective, matte finish for minimalist aesthetics or sensitive equipment.
- Pre-applied Thread Locking (AccuLock): Secures screws against vibration loosening with pre-applied patches.
FAQs
Q: What is a Pozi pan head screw used for?
A: Pozi pan head screws are used in applications where a low-profile, load distributing head and strong torque transfer are required, such as in electronics, enclosures and mechanical assemblies.
Q: How does a Pozi drive differ from a Phillips?
A: A Pozi drive features additional contact points that improve torque transfer and reduce cam-out, especially under higher loads, compared to the Phillips drive. Learn more by reading our Pozi Vs Phillips guide.
Q: Are nylon Pozi pan head screws strong enough for load-bearing applications?
A: While nylon screws offer electrical insulation and corrosion resistance, they are not suitable for high-load applications due to lower tensile strength compared to metal alternatives.
