This 5mm x 100mm variant comes in a pack of 300 and represents the heavy-duty option in the range, designed for applications demanding maximum holding power and penetration depth. The 100mm length is ideal for fixing extra-thick hardwood decking, structural timber connections, or installations where substantial joist penetration is essential for superior load-bearing performance. The increased 5mm diameter provides enhanced strength for demanding professional applications. The combination of 5mm diameter and 100mm length delivers exceptional pull-out resistance and structural integrity, making this variant perfect for high-traffic or commercial decking installations. Protected by tan elementech 2000 surface treatment, these screws offer corrosion resistance up to 30 times longer than standard alternatives. The deep torx compatible t25 insert maintains positive engagement throughout the extended driving depth, whilst the patented self-drilling thread and super sharp tip ensure clean penetration without pre-drilling, even through dense hardwoods. Features and benefits: 5mm x 100mm dimensions for heavy-duty structural applications pack of 300 ideal for specialist and commercial projects superior holding power with flexibility up to 35mm ce approved for load-bearing timber construction self-drilling thread eliminates pre-drilling in softwood and hardwood specifications: size mm : 5 length mm : 100 finish: tan anti-corrosion pack qty.: 300