Flat Head Screws

Brand RAYCHIN

Product origin China

Delivery time 5-35 DAYS

Flat Head Screws
RAYCHIN is a manufacturer and worldwide supplier of standard & custom fasteners（Flat Head Screws） including those manufactured from the following materials: Hastelloy® C-276, Hastelloy® C-22, Hastelloy® B-2, Hastelloy® G-30, Monel® 400, Monel® K-500, Inconel® 600, Inconel® 625, Inconel® 718, Incoloy® A-286, Titanium Grade 2, Titanium Grade 5, Titanium Grade 7, Nickel 200, Nickel 200, Aluminum, Molybdenum, Nimonic, Nitronic, Tantalum, Tungsten, Waspaloy, Zirconium, Duplex S31803, Duplex S32205 and Super Duplex S32750, etc.

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Flat Head Screws

Flat head screws are characterized by having a head with a flat top and bottom that is cone shaped or countersunk. With this design, the head of the screw can align flush or below the surrounding surface having obvious benefits.

Driver Availability

(dependant on size/material)
• Socket
• Slotted
• Phillips

Flat Head Screw Specifications

• ASME B18.3, ASME B18.3.6
• DIN 963 / ISO 2009
• DIN 965 / ISO 7046
• DIN 7991 / ISO 10642

Flat Head Screw Sizes

• #00 - 4"
• M1.2 - M100

PEEK Slotted vs. Phillips Driver

Slotted Head Advantages	Phillips Head Advantages
Slotted head screws tend to strip less than Philips, especially in harsh environments Slotted heads are typically better in applications where it's going to be unscrewed and re-done periodically, as the head tends to wear less. In dirty environments, a flat head is much easier to clean out	Phillips head offers a much stronger joint since it can tolerate more torque.

Countersink Angle

For most flat head screw designs the angle of countersink is usually 82° for UNC and UNF applications however other angles ranging from 60° -120° could be specified.