both r fastners
2006-09-16 02:33:03 · 4 answers · asked by Anonymous in Education & Reference ➔ Higher Education (University +)
nut needs bolt, screw does not
2006-09-16 02:38:06 · answer #1 · answered by Anonymous · 0⤊ 0⤋
A screw does not need a nut. It is pointed and goes directly into wood, concrete or some other building material. A nut is the hexagon shaped bit that is tightened onto a bolt. A bolt has no point so it goes through the wood etc., the nut is attached and tightened with a 'spanner' until the two surfaces are joined....
2006-09-16 02:38:50 · answer #2 · answered by thomasrobinsonantonio 7 · 0⤊ 0⤋
A nut has the threads on an inside diameter. A screw has threads on an outside diameter.
A screw in common usage usually refers to a threaded fastener with a slot or other hollow area in the head. If the head is solid and the outside of the head is used to turn or secure the fastener it is usually called a bolt. If there is no head it is called a stud.
2006-09-16 02:41:28 · answer #3 · answered by marsel_duchamp 7 · 0⤊ 0⤋
A nut has internal threads which match a screw or bolt's threading and is hex or sq in shape, whereas a screw has external threading which is long and has a slotted head which can be screwed with a screw-driver
2006-09-16 03:13:01 · answer #4 · answered by anil m 6 · 0⤊ 0⤋