Solid Ceramic

Slotted Flat Head Machine Screws & Bolts - Metric  | → U.S. Inch

stock ceramic flat head slotted fasteners - MetricMetric flat head slotted solid ceramic bolts and machine screws are fully threaded. Our solid ceramic fasteners are certified to ISO 9001-2015 manufacturing standards and ideally suited for high voltage environments, constant exposure to intense heat and or corrosive agents.

Made in America. Large inventory of fasteners. Immediate availability.

No Free Samples

*Available sizes, compositions and lengths vary and may be dependent upon material properties and performance characteristics. Please check our website for the most up-to-date information.

Flat head slotted metric fastener dimensional reference

To order fasteners:find the correct size, then select the composition you require.

    A B C D
Size Com­posi­tion Head Diam­eter Head Height Slot Width Slot Depth
M2 x 0.4 alumina 3.5 1.2 0.5 - 0.7 0.4 - 0.6
M3 x 0.5 alumina 5.2 1.7 0.8 - 1.0 0.6 - 0.9
M4 x 0.7 alumina 8.0 2.7 1.2 - 1.5 1.0 - 1.3
M5 x 0.8 alumina 8.9 2.7 1.2 - 1.5 1.1 - 1.4
M6 x 1.0 alumina 10.9 3.3 1.6 - 1.9 1.2 - 1.6
M8 x 1.25 alumina 15.4 4.6 2.0 - 2.3 1.8 - 2.3

Dimensions Per ANSI B18.6.7M-1985

Important Information -Please Read

Alumina & zirconia (PSZ) fasteners

  1. The pitch diameter of male threads will not exceed the max allowable according to Class 2. Minimum allowable pitch diameter may be below that of Class 2, conversely for female threads. Due to shrink factor variances, the stack up tolerance cannot be controlled on the pitch. It is recommended that you not engage more than 5 threads on any male fastener.
  2. No warranty with respect to torque strength and tensile strength is extended or implied. Ceramic materials are inherently brittle and display catastrophic failure if impacted or stressed beyond material limits.

Hex Head Fasteners

  1. Hex head metric sizes M5 and larger & ANSI hex head sizes 6-32 and larger will have a washer head face. Hex head metric sizes M4 and smaller & ANSI hex head sizes 5-40 and smaller will not have the washer head face.

Heat Resistant Corrosion Resistant Non-conductive Non Out-Gassing

Stock ceramic fasteners from Ceramco, Inc. Specializing in custom ceramic parts of complex geometries. Learn More.

Immediate Assistance is only a phone call away. If you have any questions or require additional information, please call Ceramco at: +1 (603) 447-2090, Monday - Friday, 8:00 am - 4:30 pm, U.S. Eastern.