Special thin diameter slotted head captive thumb screws in stainless steel (AISI 303 or 316 series) and titanium. A full description is like M 6- 1X 25 Which describes the outer diameter (6) , the distance from one thread to the next (1) (pitch) and the length (25) (all in millimeters. Westfield Fasteners Limited is a company registered in England and Wales with company number 07215583. Please complete the purchase (or remove the quote – don't worry it's still available in My Account) before adding these additional items.

Thumb Screws | McMaster-Carr Metric Thumb Screws | McMaster-Carr

Knurled Captive Shouldered Thumb Screws are a variant of the thumb screw to DIN 464 standard but instead host a reduced thread, or unthreaded portion, below the head of the fastener. Captive screws are easy to install and are usually used with a retaining flange or a retaining washer. The captive screw should then be screwed into the flange until the reduced diameter section is reached. These screws are designed to hold separate components together in a wide range of applications such as industrial machinery and vehicle engines with no tools needed for installation. Our captive screws are available n stainless steel (AISI 303 (A2) and 316 (A4) series), titanium, aluminium and more.

A good selection of accessories such as screws, bolts, washers and nuts that you may need for your daily engineering usage. Also available to purchase online are threaded washers and retaining flanges for captive screw installation on thin or non-threaded panels.

M3 x 10mm Thumb Screws Plain Type Metric (Thread Dia. 3.0mm M3 x 10mm Thumb Screws Plain Type Metric (Thread Dia. 3.0mm

Browse industrial materials ranging from heat insulating plates, sponges, to metal and plastic materials in different sizes to meet your various applications. ASTM B348 grade 2 titanium is commercially pure titanium metal and is exceptionally corrosion resistant. Automotion Components is a leading manufacturer of captive screws (also known as captive nut fasteners) and captive thumb screws. A wide variety of tools and supplies used in processing including Machine Tools, Measurement Tools, Grinding and Polishing Supplies and more.I can find M9 taps and dies at metalworking suppliers, so I doubt they are all THAT custom, though they might well be uncommon. In addition, if the equipment is subject to vibration or other disturbances, even though the screw could come loose, it will not fall out and cause damage to a production line, for example. Generally used in timber to timber and timber to metal construction, these bolts incorporate a square neck to grip the hole in the timber when fitting, and therefore negates the need for any drive recess to be included on top of the head. You asked about M3, M4, etc - that describes (only) the outside diameter of the screw - or the size of an unthreaded hole the screw would slip through. Our thin head captive thumb screws are generally produced in AISI 303 and 316 series stainless steel.