Gossamer describes the very fine thread of a spider's web.
Fine Thread and Course Thread
Fine thread repair kits may be purchased from a retailer in the car repair business. Alternatively there are fine thread repair kits available on Amazon or Newegg for approximately $30.
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Lisle
It is a standered fine thread bolt, Grade 8
Wheel bearing won't have any threads. If your talking about the post they mount on, then you can use a pitch gage to get the number of threads per inch and then compare that to a thread chart to determine if they are coarse or fine.
a needle or a sewing machine and thread.
No. The coarse thread UNC screws will not thread into the fine thread UNF holes. UNC must be used with UNC and UNF with UNF.
I have a 1986 Suzuki 700 Intruder and a Fram PH6018 oil fliter does not fit it ... This filter has a 24mm fine thread mount and mine is closer to 18mm fine thread
UNC stands for "UNIFIED BOLT THREAD COARSE" UNF stands for " UNIFIED BOLT THREAD FINE"
There are different standards depending on where you are. BSP, which is British Standard Pipe thread, is a fine thread used as an international standard
Coarse thread drywall screws have deeper and more widely spaced threads, providing better grip and holding power in softer materials like wood. Fine thread drywall screws have shallower and closer together threads, making them better suited for harder materials like metal studs.