grade 2 Butterfly screws

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The thicker, domed head on these bolts provides greater wear resistance than flat head plow bolts. the underside of the head is angled to sit flush within countersunk holes for use on heavy equipment, such as plows. the square neck keeps these bolts from turning when tightening a nut.

Mar 21, 2016 · used in automotive applications and for bolting large and forged parts, metric 10.9 bolts exhibit high tensile strength and good wear resistance. our metric grade 10.9 bolts meet astm a324 grade bd and sae j429, grade 8 standards. the yield strength of the bolts is 940 and the tensile strength is 1040 mpa.

We're an enterprise that export grade 2 Butterfly screws to China, we're approved by the relevant state registratio. Key grade 2 Butterfly screws and sell to various regions in China, solution readily available upon request. We have the spirit of "customer first, honesty first" principle, with a quantity of enterprises established long-term cooperative relationship.


We're an enterprise that export grade 2 Butterfly screws to China, we are authorized by the relevant state registratio. Key grade 2 Butterfly screws and sell to many regions in China, solution offered upon request. We've got the spirit of "customer very first, honesty first" principle, with a quantity of enterprises established long-term cooperative relationship.

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