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Hex head cap screws are used in construction and mechanical assemblies to secure wood, metal and plastic. Raptor Supplies offers these hex head cap screws from brands like Grainger, Fabory, Armor Coat and Calbrite. These screws are ideal for applications that require high tolerances.
Provides hardness, structural rigidity and durability
Provides low thermal expansion and resistance against hazardous chemicals
Provides corrosion (especially seawater corrosion) & metal fatigue resistance and better conductivity than most steel variants
Lighter than stainless steel and imparts non-magnetic properties
Shiny appearance and excellent corrosion resistance
Offers greater corrosion resistance but lesser hardness, as compared to steel
Has greater strength to weight ratio and rigidity at the same thickness as plastic
Offers excellent electrical insulation and wear resistance
Lightweight and cheaper to use than any other material
Corrosion, heat and fire-resistant properties with moderate structural rigidity
Provides resistance from wear, scratches and corrosion
Mild-to-high corrosion resistance in wet environments
For corrosion resistance & a yellow-coloured finish
Provides 4 to 6 times more heat and corrosion resistance than galvanised metal
For easy distinguishing & identification
Gives a metallic appearance; ideal for marine environments
Provides easy maintenance and high resistance against wear & tear
Provides better corrosion resistance than zinc plating, owing to the thick coating
Protects from adhesion failure and offers excellent abrasion resistance
Offers chemical resistance and can withstand 1000 hours of salt spray
Minimises light reflection and provides light-to-medium corrosion resistance
Lesser corrosion resistance but better adhesion properties than zinc plating; suitable for dry environments
Ensures low friction and exceptional adhesion
They have an unthreaded section just below the head. They are commonly used where shear resistance and alignment are important.
They feature external threading on the entire length.
They feature six stress-bearing surfaces that enable them to handle screwing better than cross-shaped or slotted screws. They are ideal for construction, machine assembling and woodworking applications.
These screws are installed via a slotted or flat screwdriver. They feature an undercut head with a rounded top that tapers around the edge of the screw head.
They have a cross-slot at the centre that prevents the screw from slipping when driven. The head design provides the capacity to handle higher torque better than other fasteners.
These screws can be tightened with a ratchet, wrench or female hex driver. They require lesser force for tightening than internal hex drives and are easier to loosen when rusted or dirty.
These threads are measured in millimetres and are specified by their pitch & diameter. They can have coarse, fine, extra fine or ultra fine thread spacing and are compatible with other metric threads only.
They have fine spacing to prevent loosening while vibrating, but are prone to jamming or stripping during assembly. These threads can mate with UNRF and UNF threads.
They have extra fine spacing and thus, travel a very small distance with each turn for precise and incremental adjustments. They are found on thin-walled tubes and thin nuts. These threads mate with UNREF and UNEF threads.
These threads are designed for special thread sizes that do not fall under UNC, UNF, UN or any other unified thread type. They can be fine, coarse, extra fine or ultra fine, but they mate with other UNS threads only.
These threads offer additional thread sizes where UNF, UNC & UNEF would not be fit for a specific design or application. They are also known as constant-pitch threads because the number of threads per inch remains the same, even upon changing the diameter.
They feature coarse spacing to easily loosen & tighten with fewer turns. These threads are compatible with UNRC and UNC threads.
These screws feature threads that slant up and to the right. They move away from users when turned clockwise.
These screws are also called reverse thread screws. They slant up & to the left and move towards the user when turned clockwise. They are ideal for securing anti-clockwise spinning parts, such as power saws and bicycle pedals.
These screws are even more closely spaced than fine threads. They travel a very small distance with each turn, allowing accurate & incremental adjustments.
These screws have more closely spaced threads than coarse threads, making them less prone to loosening while vibrating. They travel a short distance with each turn, allowing the user to make precise adjustments.
They are the widest spaced screws and thus, start easily & need minimum turns to tighten. The threads are thick & deep, making them less prone to stripping or jamming, even if they are dirty / rusty.
The primary difference between a bolt and a cap screw is the way in which they are installed. A hex cap screw is inserted by twisting the head of the bolt to assemble and tighten, whereas a bolt is installed by turning a nut to tighten the fastener.
Hex-head screws have a hexagonal head that can be tightened with a wrench or socket, which engages with the external faces of the hex head.
These machine screws adhere to AN, ASME, ASTM, CSA, DIN, EHEDG, FDA, Federal Specifications, IFI, ISO, JIS, Military Specifications, MS90728-10, NAS, SAE and UL standards.