M6 x 16mm Button Head Hex Socket Cap Screws Bolts, 10.9 Grade Alloy Steel, Black Oxide Finish, Fully Threaded, 25 PCS

I bought these specifically for use with my (many) Nova chucks. Nova (Teknatool) will charge you $11.95 on Amazon for eight (8) screws for the G3 and/or SuperNova series chucks - That's $1.49+ per screw! I currently have 5 chucks so I don't have to change jaws very often, but it rarely fails that when I do change a jaw, one of the screws will fall in the sawdust/chips and/or get sucked into the dust collector. I figured that there had to be a more cost effective way of buying screws and these fit the bill. Are they the same, No, do they work the same, Yes.I believe Nova either get theirs specifically made slightly different from industry standards, or they re-work standard screws. The head of the Nova flathead screws are slightly smaller than the industry standard so they will fit in the milled screw hole on their jaws. The button head screw on these screws fit perfectly in these holes. The screws are NOT flat head so there isn't the taper on the backside of the screw that flat heads have. This is ok though. The binding back of these button head screws will hold the jaws firmly and securely. I bought the M6 x 10mm long (button head). Here is what I found out today when I used them on a G3 and a SuperNova chuck. First, on jaws like the Cole jaws (same thickness on outer & inner screw holes) these work perfectly on both chucks. I then tried them on the normally included 35mm jaws, the screws on the outer edge of the jaws worked perfectly; however, the inner screws bottomed out before totally becoming flush or lower to the jaw - I just ordered the 8mm long ones that should fix this issue. Finally, these screws use an industry standard (for button head screws this size) 4mm hex (instead of the T20/25 that Nova uses. My suggestion, buy 50 of these (at 8mm length) for $10, at the same time buy the "Klein Tools JTH6M4BE 4 mm Ball End Hex Key with Journeyman T-Handle, 6-Inch" for $5. You will have $15 invested (instead of $12 buying 8 screws) with 42 extra screws that can be used the next time the dust collector, bench or floor gets hungry. As an added bonus, the Klein tool won't lose its shape or strip when you use it! You really dont want to know how much Nova charges for the Nova Torx wrench!Hope this helps!

Perfect.

Works great in a tight spot for starter motor bolts in my riding mower

These screws replaced the roof screws after removing the roof rack from my 2013 GMC Yukon Denali. These are a bit shorter than the factory screws which is exactly the fit when removing a roof rack.

I am using these to mount a subwoofer into a cabinet that has threaded nuts. Good size and the black looks more professional. I am worried that the finish will remain rust free as this will be a car audio installation but inside the car.

A screw of this size broke in my jet van saw rendering it useless. Jet and other suppliers say the park is on back order. With a small amount of research I determine the exact size of that screw and found it here. Perfect fit and my $1400 Jet band saw is working once more. Easy.

These things will rust...and rust quickly. So....paint them or apply some clear coat if they are going to be used outdoors.

Started rusting with in a month