1-1/2 in x 7/16 in 16 Gauge S304 Stainless Staples - Durable Exterior

In this review the B&C Eagle SDM112SS-2M staples are evaluated for contractors and DIYers who need corrosion-resistant collated staples for outdoor and treated lumber work. The bottom line: these 1-1/2 in length, 7/16 in medium crown, 16 gauge S304 stainless staples shine where long-term durability matters, especially on cedar shingles, siding and fencing. The reviewer found they feed reliably in common 7/16 in medium crown pneumatic staplers and resist rust even in exposed applications, making them a practical choice for exterior projects where stainless performance is required.

Key Features

• S304 Stainless Steel: Provides long-term corrosion resistance so staples will not rust in exterior or treated lumber applications.
• 1-1/2 in Length: Offers sufficient holding power for sheathing, fencing and cedar shingles where deeper penetration is needed.
• 7/16 in Medium Crown: Fits 7/16 in medium crown staplers (Senco style) for broad contact and secure fastening on thin materials like vinyl and metal siding.
• 16 Gauge Wire: Balances strength and minimal splitting for use in wood trim, soffits and floor underlayment.
• Chisel Point: Reduces splitting and eases entry into lumber, improving drive consistency with pneumatic tools.
• Reclosable Box: Protects remaining staples during storage and transport to job sites.

Who It's For

These staples are best for professional tradespeople and serious DIYers who frequently work on exterior projects such as cedar shingle siding, fascia, soffits, decking subcomponents and fencing, or who need a stainless option for treated lumber. They also suit manufacturing uses like pallet and crate assembly where corrosion resistance prolongs product life.

Those who should look elsewhere include users who only need interior bright-finish staples for light craft work, or people whose stapler does not accept 7/16 in medium crown collated fasteners; checking tool compatibility is important before purchase.

Pros & Cons

Pros

• Long-lasting corrosion resistance thanks to S304 stainless, ideal for exterior and treated lumber.
• Good compatibility with common pneumatic tools like Senco-style staplers for fewer jams and reliable drives.
• Chisel point and 16 gauge wire deliver strong holding power without excessive splitting on trim and siding.
• Reclosable box preserves unused staples and keeps jobsite inventory protected.

Cons

• Some users report mixed jam frequency depending on tool model and maintenance, so experience may vary by stapler.
• Stainless staples cost more than bright finish options, so they may be overkill for interior-only tasks.

Specifications

Our Verdict

The B&C Eagle 1-1/2 in x 7/16 in 16 gauge S304 stainless staples are a solid buy for exterior contractors and homeowners who need dependable, rustproof fasteners for siding, fencing and treated lumber. They represent good value for the longevity and compatibility they offer, though occasional jam issues will depend on the stapler used and routine tool maintenance.

Frequently Asked Questions

Will these work in Senco style staplers?
Yes, they are designed for use in 7/16 in medium crown staplers including many Senco-style pneumatic tools when the tool accepts 1-1/2 in length staples.

Are these suitable for treated lumber?
Yes, the S304 stainless construction is rated for use in treated lumber and exterior applications where corrosion resistance is required.

How are the staples packaged for storage?
They come in a reclosable box that helps protect unused staples on the jobsite and during storage.