3267 Fasteners Guide 2016 UK v4a - RS Components

1 June 2016 (UK customers) (International customers)FASTENERSSELECTION GUIDEC hoose from our most popular range of fastenersWe have over 9,000 Fasteners , fixings, ironmongery and hardware products online2 Fasteners SELECTION GUIDECOMMON fastener TYPESFASTENER MATERIALSHex bolts Hex bolts are partially threaded and are used in machinery and construction applications. Can be used with a nut or in a tapped hole and are tightened with a set screws Hex set screws are similar to the Hex bolt but are fully threaded instead of partially threaded. They are also used in machinery and construction applications and can be used with a nut or in a tapped hole. Wood screws Wood screws are primarily used in carpentry applications. They provide a strong clamping force which strengthens the joint between two materials. Wood screws are suitable for fixing hinges, bolts, locks and other door , Self-tapping and Thread-forming screws These are screws which form a thread as they are inserted.

2 The choice of screw used will depend upon the material, its thickness and the application. A pilot hole may be required. Machine screws Machine screws are fully threaded and are used with a nut or in a tapped hole. They can be used in many applications where a high strength fastener is not required. The drive type dictates the appropriate screwdriver screws Socket screws have an internal hex drive and are tightened using a hex key. Often they are used in applications where there is limited clearance. A headless version is available and is known as a socket set screw or grub bolts Carriage bolts, also known as coach bolts, have a domed head with a square section underneath that pulls into the material or a square hole to prevent spinning during Nuts are used with machine threaded Fasteners in through-hole applications. Hex nuts are the most common type and are for general-purpose fastening applications. Other types are chosen depending on the application required.

3 These include locking nuts, which are used when a greater resistance to vibrations and torque is Washers are generally used with a machine threaded fastener and nut to spread the load over a greater surface area when tightening a bolt, screw or nut. Zinc plated steel Zinc plating provides moderate corrosion resistance suitable for indoor use in a dry dipped galvanised steel Hot dipped galvanised steel has a thicker zinc coating for better corrosion resistance, making it suitable for outdoor use. The finish is typically dull and rough. Only galvanised nuts and washers will fit galvanised steel Stainless steel offers good corrosion resistance, making it suitable for outdoor applications, but is more expensive than zinc plated or galvanised two most common grades of stainless steel are A2 (304) and A4 (316). Both grades will offer a good form of corrosion resistance and both are able to handle low (cryogenic) and high temperatures.

4 A4 grade has a higher corrosion resistance than A2 grade and should be chosen in higher corrosive and chemical environments, including contact with dilute sulphuric acid and acetic acid. A4 should be chosen for marine conditions. Brass Brass is a copper alloy which is more expensive than steel but provides a better level of corrosion resistance. It is used when a decorative finish is required and also in marine and nickel plated steel Chrome and nickel plated steel have a smooth, polished appearance and are used where a decorative finish is desired. The nickel plating gives moderate corrosion steel Alloy steel is used when a high strength fastener is required. Usually produced with a black oxide finish which offers little corrosion resistance and so is not recommended for outdoor Nylon Fasteners offer good value and are ideal where a corrosion-free, lightweight solution is required. They offer good insulation resistance and can be used in high voltage Titanium Fasteners are non-toxic and offer lightness and very high corrosion resistance that makes them ideal for where these attributes are vital.

5 Comparatively more expensive than other SELECTION GUIDEGRADES AND STRENGTHSNUT AND WASHER SIZESTHREAD PITCHMEASURING DIAMETERMEASURING LENGTHDRIVE TYPESHEAD TYPESThe fastener grade indicates the mechanical properties of the material and is stamped onto the head of a bolt or screw. A higher number indicates a stronger, more hardened material. So grade will be stronger than manufacturer s stamp may also be and washer sizes indicate the size of screw or bolt they the case of metric machine threaded Fasteners , the thread size will denote the size of screw or bolt Fasteners have a specific thread pitch depending on the size and thread type of the the thread pitch is the distance between threads expressed in millimetres (measured along the length of the fastener ). For example a thread pitch of means that the distance between one thread and the next is diameter is measured across the threaded portion on the outside of the Fasteners are measured over the whole length.

6 All other types are measured from under the head. fastener length is measured from where the material surface is assumed to be, to the end of the x 50mmM4M4 Hex Used for larger bolts and set screws. Fastened with a spanner or Consists of a raised, domed head which sits above the material (flat) Fastened into a countersunk hole with head sitting flush with the material (raised) Fastened into a countersunk hole and with an oval, raised head for decorative Narrow head with a hex socket drive. Button Consists of a low profile, rounded, dome-shaped head, typically with a slotted or hex socket A cylindrical shaped head with straight sides that sits above the material Highly versatile, most commonly used in woodworking applications. Pozidriv An improved version of the traditional Phillips drive. Pozidrives are less likely to cam out and allow for greater torque pressure. Hex socket Used with a Hex key in applications where there is limited Very common in automotive applications and highly resistant to slippage or A range of tamperproof types with a spigoted recess virtually eliminating unauthorised removal.

7 DiameterLengthLength4 Choose from our great range of tools and associated productsShort Arm Hex KeysThread SealantsScrew Extractor SetsStorage BinsGear Wrench SpannersScrew Extractor SetsInterchangeable Screwdriver SetsTorx Key SetsM2 - M3 POZI / SLOTTED / TORXPan Head SlottedDin 85 Pan Head PoziDin 7985 Pan Head TorxDin 7985 TCsk Head SlottedDin 963 Csk Head PoziDin 965 Csk Raised Head SlottedDin 964 Csk Head TorxDin 965 TCheese Head SlottedDin 84 BZPNP BrassBrassA2A4 BZPNP Brass Black ZPA2A4 BZPA2 BZPNP BrassA2A4 BZPA2A4NP BrassA2 BZPNP BrassM2 x 3mm914-1560M2 x 4mm914-1462914-1624914-1759M2 x 5mm914-1563914-1466914-1633M2 x 6mm560-704482-7679 483-1325526-906560-530482-7714528-693482 -7685 914-1636914-1753908-7747M2 x 8mm908-7637914-1475914-1762M2 x 10mm908-7646914-1478M2 x 12mm560-710482-8458 483-1331526-912560-546483-0035528-700482 -9114908-7740M2 x x x 6mm560-726482-8464526-928560-552483-0041 528-716482-7455448-7940 482-9142 914-1649908-7463546-6102 x x 10mm908-7582914-1576908-7652797-6190908- 7356908-7475546-6118 x 12mm560-732482-8470526-934560-568483-005 7528-722482-7887448-7956 482-9158908-7479546-6124 x 16mm482-8486130-606908-7655 x 20mm560-748482-8492914-1579560-574483-00 79914-1488908-7365 482-9170546-6146 x 25mm482-8509483-0085M3 x 4mm908-7659M3 x 5mm914-1573908-7668914-1497914-1642914-1 765M3 x 6mm560-754482-8515 483-1381526-940189-298560-580483-0091 483-0934528-738190-428482-7893 262-5847553-841482-9186527-151158-333255 3-396528-946158-3562482-7691546-6152 482-9754M3 x 8mm908-7586914-1582189-305908-7661797-61 93190-434908-7368914-1646 914-1863 908-7481 914-1769 914-1942908-7744M3 x 10mm560-760526-956189-311560-596483-0940 528-744190-440908-7362914-1866 908-7485 914-1778 914-1945546-6168 482-9760M3 x

8 12mm560-776482-8521 483-1397526-962189-327560-603483-0108 483-0962528-750190-456482-7900 262-5853553-857482-9192527-167158-334855 3-403528-952158-3578482-9518262-5651546- 6174M3 x 16mm560-782482-8537526-978189-333560-619 483-0114528-766190-462908-7371 482-9209158-3354 908-7494 914-1771 158-3584482-9524546-6180 482-9782M3 x 20mm560-798482-8543 483-1410526-984560-625483-0120528-772190 -478482-7916553-863482-9215 914-1655 158-3360553-419528-968158-3590546-6196M3 x 25mm560-805482-8559130-612560-631483-013 6914-1490908-7374914-1775546-6203 482-9811M3 x 30mm482-8571 483-1432130-628560-647483-0142914-149448 2-9221 914-16585 Can t find what you need? We have over 9,000 Fasteners , fixings, ironmongery and hardware products onlineWall PlugsRivetsThreaded RodsMasonry AnchorsCoach BoltsScrew, Bolt & Nut KitsSelf-tapping ScrewsWood - M4 POZI / SLOTTED / TORXPan Head SlottedDin 85 Pan Head PoziDin 7985 Pan Head TorxDin 7985 TCsk Head SlottedDin 963 Csk Head PoziDin 965 Csk Raised Head SlottedDin 964 Csk Head TorxDin 965 TCheese Head SlottedDin 84 BZPNP BrassBrassA2A4 BZPNP Brass Black ZPA2A4 BZPA2 BZPNP BrassA2A4 BZPA2A4NP BrassA2 BZPNP x 6mm482-8587914-1504908-7378 x x x 12mm560-827482-8593560-653528-788908-738 7 x 16mm908-7595 482-8600908-7677908-7380 x x x 30mm482-8638908-7680908-7396 x x x x x 70mm482-9647M4 x 5mm908-7683914-1784M4 x 6mm560-849482-8644 483-1505527-016189-355560-675483-0158 483-0978528-801914-1848262-5910 908-7390 482-9271158-3376158-3607262-5718546-6219 482-9827M4 x 8mm908-7598914-1585189-361908-7687797-61 97190-484908-7400914-1661908-7508 914-1787482-9653908-7750M4 x

9 10mm560-855527-022189-377560-681483-0984 528-817190-490908-7403914-1664 914-1860 908-7517914-1949546-6225 482-9833M4 x 12mm560-861482-8650 483-1511527-038189-383560-697483-0164 483-0990528-823190-507482-7950 262-5926553-879482-9287527-189158-338255 3-425528-974158-3613546-6231M4 x 16mm560-007482-8666 483-1533527-044189-399553-554483-0186528 -839190-513553-885482-9300527-195158-340 5553-431528-980158-3629482-9675262-57465 46-6247 482-9861M4 x 20mm560-013482-8672 483-1549527-050189-406553-560483-0192528 -845190-529482-7966553-891527-202158-341 1553-447528-996158-3635482-9681546-6253 482-9877M4 x 25mm560-029482-8688 483-1555527-066189-412553-576483-0209528 -851190-535553-908482-9316158-3427553-45 3914-1781 158-3641546-6269M4 x 30mm560-035482-8694 483-1561130-634189-428553-582483-0215797 -6207908-7407 482-9322914-1879 908-7510 914-1790482-9704546-6275 482-9899M4 x 35mm908-7696914-1501908-7769M4 x 40mm560-041482-8701130-640553-598483-022 1797-6200908-7416 482-9338 914-1668908-7514 914-1793482-9710908-7762M4 x 50mm290-073482-8717 483-1577130-656908-7699908-7419908-75239 08-77666 Pan Head SlottedDin 85 Pan Head PoziDin 7985 Pan Head TorxDin 7985 TCsk Head SlottedDin 963 Csk Head PoziDin 965 Csk Raised Head SlottedDin 964 Csk Head TorxDin 965 TCheese Head SlottedDin 84 BZPNP BrassBrassA2A4 BZPNP Brass Black ZPA2A4 BZPA2 BZPNP BrassA2A4 BZPA2A4NP BrassA2 BZPNP BrassM5 - M8 POZI / SLOTTED / TORXM5 x 6mm908-7592 482-8723914-1589908-7693 483-0243914-1510482-9344908-7526908-7775 M5 x 8mm908-7602189-434908-7703797-6204 914-1857914-1677908-7520 914-1797908-7778M5 x 10mm560-057914-1598189-440553-605483-100 0 797-6213190-541908-7413914-1670 914-1872 908-7539 914-1807 914-1958546-6304 482-9928M5 x 12mm560-063482-8739 483-1599527-072189-456553-611483-0259 483-1016528-867190-557482-7972

10 262-5960553-914482-9366527-280158-343355 3-469529-006158-3657262-5768546-6310M5 x 16mm560-079482-8745 483-1606527-088189-462553-627483-0265 483-1038528-873190-563553-920914-1674 158-3449553-475158-3663262-5774546-6326 482-9940M5 x 20mm560-085482-8751 483-1612527-094189-478553-633483-0271528 -889190-579482-7988553-936482-9388527-29 6158-3461553-481529-012158-3685546-6332 482-9956M5 x 25mm560-091482-8767 483-1628527-101189-484553-649483-0287528 -895914-1850553-942482-9394527-303914-18 76553-497529-028914-1951262-5796546-6348 482-9962M5 x 30mm908-7605 482-8773 483-1634130-662189-490908-7706 483-0293797-6216908-7422 482-9401 914-1683 158-3483 908-7532158-3708908-7772M5 x 35mm908-7609914-1591908-7700797-6210908- 7425914-1686 914-1885 908-7536 914-1800908-7781M5 x 40mm560-108482-8795130-678553-655483-030 0914-1513908-7429 482-9423914-1888 908-7545 914-1804908-7784M5 x 45mm914-1595M5 x 50mm290-089482-8802 483-1640130-684908-7719914-1526908-7438 482-9439 914-1680 914-1882 908-7548 914-1813908-7788M5 x 60mm914-1605914-1699 914-1891M5 x 75mm914-1608M6 x 8mm914-1529M6 x 10mm560-114914-1602189-507553-661914-152 3190-585908-7431914-1692 914-1894 908-7542 914-1816 914-1955908-7797M6 x 12mm560-120516-8280 483-1656527-117189-513553-677483-1044190 -591553-958482-9445527-319914-1898553-50 4529-034158-3714546-6360 482-9978M6 x 16mm560-136482-8824 483-1662527-123189-529553-683483-1050528 -918190-608546-1589914-1696 158-3506553-510914-1810 158-3720262-5819546-6376M6 x 20mm560-142482-8830 483-1678527-139189-535553-699483-1066528 -924190-614482-8026 262-6036553-970482-9467527-325158-352855 3-526529-040158-3742546-6382 482-9990M6 x 25mm560-158482-8852 483-1690527-145189-541553-706528-930190- 620482-8032 262-6042 546-1595