collar 20 is entering the wood is encountered while the impulse from the nail driving tool is high accordingly the greatest resistance to penetration is overcome while the impulse from the tool is high and as such penetration of the nail is greater when the collar 20 is positioned close to the nail tip 34 rather than farther back on the nail shank 16 near to the nail head h an evaluation of the effect of the collar 20 position on the shank 16 was conducted using a nail 14 that was 3 inches long and 0 131 nominal diameter with a collar length l 20m of 0 5 inches and a thickness t 20 of about 0 020 inches and a collation material of maleic anhydride modified polypropylene admer u00ae and a pneumatic driving force of 90 psi it was found that a nail 14 having a collar 20 positioned 2 25 inches from the tip 34 was driven had a penetration of 2 45 inches a nail 14 having a collar 20 positioned 1 5 inches from the tip 34 was driven 2 75 inches a nail 14 having a collar 20 positioned 0 5 inches from the tip 34 was driven 2 975 inches and a bare nail 14 was driven 2 925 inches it will be appreciated by those skilled in the art that the use of a forward positioned collar 20 or more generally a forwardly positioned collation element or support is not limited to use with a collated nail strip 10 rather such an arrangement can be used with other strip formed fasteners and other strip formed consumables fig5 a and 5b illustrate an embodiment 210 in which the ribs 226 are formed at an angle u03b3 and u03b3 u2032 relative to.