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2. List of screw and bolt types - Wikipedia

   en.wikipedia.org/wiki/List_of_screw_and_bolt_types

   Ideally 1-1/4" to 1-1/2" of screw thread in the concrete. [1] So for example, if a 1/2" board is being screwed onto the concrete, a 1-3/4" to 2" concrete screw should be used. deck screw: Similar to drywall screw, except that it has improved corrosion resistance and is generally supplied in a larger gauge.

3. ISO 898 - Wikipedia

   en.wikipedia.org/wiki/ISO_898

   1. Bolts, screws and studs with specified property classes – Coarse thread and fine pitch thread [2] 2. Nuts with specified proof load values – Coarse thread [3] 3. Flat washers with specified property classes [4] 5. Set screws and similar threaded fasteners not under tensile stresses [5] [6] 6.

4. List of DIN standards - Wikipedia

   en.wikipedia.org/wiki/List_of_DIN_standards

   Sets of taps – Sets of 3 taps for metric coarse ISO-threads M1 to M68: Active: DIN 371: Machine taps with reinforced shank for coarse pitch metric ISO-threads M1 to M10 and fine pitch metric ISO-threads M1 × 0,2 to M10 × 1,25: Active: DIN 374: Machine screwing taps for fine pitch metric ISO-threads M3 × 0,2 to M52 × 4: Active

5. Confirmat screw - Wikipedia

   en.wikipedia.org/wiki/Confirmat_screw

   Confirmat screws on a sheet of the particleboard material in which they were designed to hold. Diagram of a hex-headed confirmat screw, made to be turned with an allen key A confirmat screw holding a butt joint in melamine-coated particleboard. A specialized stepped drill bit and a screw to match it. The screw is covered with a cosmetic plastic ...

6. Anchor bolt - Wikipedia

   en.wikipedia.org/wiki/Anchor_bolt

   Tapcon screws are a popular anchor that stands for self tapping (self threading) concrete screw. Larger diameter screws are referred to as LDT's. This type of fastener requires a pre-drilled hole—using a Tapcon drillbit—and are then screwed into the hole using a standard hex or phillips bit. These screws are often blue, white, or stainless ...

7. List of thread standards - Wikipedia

   en.wikipedia.org/wiki/List_of_thread_standards

   A screw thread, often shortened to thread, is a helical structure used to convert between rotational and linear movement or force. A screw thread is an inclined plane wrapped around a cylinder or cone in the form of a helix, with the former being called a straight thread and the latter called a tapered thread.