10pcs UNC 1/4-20 Coarse Thread 304 A2-70 Stainless Steel Cross Recess Flat Countersunk Head Screw Bolt (Length : 1") : Amazon.ca: Tools & Home Improvement
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TR knowledge base | Thread geometry - Unified Coarse (UNC)
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UNC & UNF Threads - Unified Threads
TITANIUM BOLT 12 POINT 1/4 INCH UNC THREAD X 1 1/4 INCH LONG GRADE 5 6AL-4V | eBay
RS PRO Threading Tap, 1/4 UNC Thread, UNC Standard
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SHDIATOOL 1 1/4"-7 UNC Male Thread（Include 1/2 BSP Female Thread）to SDS PLUS Shank Good Quality Steel
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SHDIATOOL Core Drill Bit Adapter 1-1/4“UNC Thread Male to SDS Plus Shank Conversion : Amazon.co.uk: DIY & Tools
(CSPCSH-SUS-UNC1/4-1 3/4) UNC Flat Unified Screw【1-100 Pieces Per Package】 from SUNCO | MISUMI
